Why Is the Metal Mercury a Liquid

Mercury is the only metal that is a liquid at normal temperatures and pressure. But, why is mercury a liquid? What makes this element so special? Basically, its because mercury is bad at sharing... electrons, that is.Most metal atoms readily share valence electrons with other atoms. The electrons in a mercury atom are bound more tightly than usual to the nucleus. In fact, the s electrons are moving so fast and close to the nucleus they exhibit relativistic effects, behaving as if they were more massive than slower-moving electrons. It takes very little heat to overcome the weak binding between mercury atoms. Because of the behavior of the valence electrons, mercury has a low melting point, is a poor electrical and thermal conductor and doesnt form diatomic mercury molecules in the gas phase. The only other element on the periodic table that is a liquid at room temperature and pressure is the halogen bromine. While mercury is the only liquid metal at room temperature, the elements gallium, cesium, and rubidium melt under slightly warmer conditions. If scientists ever synthesize a sufficient quantity of flerovium and copernicium, these elements are expected to have an even lower boiling point (and perhaps melting point) than mercury. Source Norrby, L.J. (1991). Why is mercury liquid? Or, why do relativistic effects not get into chemistry textbooks?. Journal of Chemical Education. 68 (2): 110. doi:10.1021/ed068p110

Life and Work of John Bowlby - 2584 Words

Bowlby was born in London to an upper-middle-class family. He was the fourth of six children and was brought up by a nanny in the British fashion of his class at that time. His father, Sir Anthony Bowlby, first Baronet, was surgeon to the King s Household, with a tragic history: at age five, Sir Anthony s own father (John s grandfather) was killed while serving as a war correspondent in the Opium Wars. Normally, Bowlby saw his mother only one hour a day after teatime, though during the summer she was more available. Like many other mothers of her social class, she considered that parental attention and affection would lead to dangerous spoiling of the children. Bowlby was lucky in that the nanny in his family was present throughout his†¦show more content†¦He focused on how attachment difficulties were transmitted from one generation to the next. In his development of attachment theory he propounded the idea that attachment behaviour was essentially an evolutionary survival strategy for protecting the infant from predators. Mary Ainsworth, a student of Bowlby’s, further extended and tested his ideas, and in fact played the primary role in suggesting that several attachment styles existed. The three most important experiences for Bowlby’s future work and the development of attachment theory were his work with: Maladapted and delinquent children. James Robertson (in 1952) in making the documentary film A Two-Year Old Goes to the Hospital, which was one of the films about †young children in brief separationâ€Å". The documentary illustrated the impact of loss and suffering experienced by young children separated from their primary caretakers. This film was instrumental in a campaign to alter hospital restrictions on visiting by parents. In 1952 when he and Robertson presented their film A Two Year Old Goes to Hospital to the British Psychoanalytical Society, psychoanalysts did not accept that a child would mourn or experience grief on separation but instead saw the child s distress as caused by elementsShow MoreRelatedThe Theory Of Development Concepts And Applications By William Crain1076 Words   |  5 Pagesare  John Bowlby,  Mary D.S. Ainsworth,  and  Ã‚  Erik H. Erikson.   I couldn t help but reminisce about the stages of my own children’s  growth while reading the work of Bowlby, Ainsworth and Erikson.   I remember having my  young children with me when ever it was possible, but what attachments to them might I have  missed while I  was busy working or did I  miss any at all?   Bowlby’s work on attachment gives a compelling argument as to the importance of attachment in the first 6 months of a Childs life.   Ainsworth’sRead MoreAttachment Theory Essay1152 Words   |  5 PagesChris Livoti 3/5/13 IB Psychology Mrs. Urso John Bowlby is the pioneer of the attachment theory and worked with children who had been separated from their parents during World War 2. He observed that many of these children developed emotional problems, and he made the connection that the emotional problems stemmed from the separation from the mother. Bowlby was born in London to an upper class family, and would rarely see, and interact with his motherRead MoreMary Ainsworth And Attachment : An Influential Psychologist1576 Words   |  7 PagesMary Ainsworth and Attachment Mary Ainsworth was an influential psychologist in the area of attachment. She had a great life and not only helped further other psychologists’ findings, but also made significant findings of her own. Historical Context The types of studies in the area of attachments before Mary Ainsworth were the works of Harry Harlow, John Bowlby, and William Blatz. Harry Harlow was born October 31st, 1905 in Iowa to a small farming community. He obtained his BA and PhD at StanfordRead MoreHow Does Attachment Influence The Social And Emotional Development Of The Child? Essay1378 Words   |  6 Pageschildren develop and thrive better when they are brought up in an environment where the caregiver satisfies a child’s needs physically and emotionally. A British psychiatrist, John Bowlby, developed a theory around these parent-child relationships called attachment theory. Throughout the Late 1930s and 1940s a psychologist John Bowlby investigated the nature and the purpose of the close relationships that a person forms with people throughout their lives, in particular, childhood. He researched the makingRead MoreThe Theory Of Love By Robert J. Sternberg1458 Words   |  6 PagesIt can be applied to early development studies of attachment theory, such as those by John Bowlby and Mary Ainsworth, and carried over to our studies of romance and love through the works of Robert J. Sternberg. Many of our class lessons have focused on cause and effect: childhood cause and adulthood effect. Thus it is not strange to note, Sternberg’s research, the triangular theory of love, is impacted by Bowlby and Ainsworth’s attachment theory. As we notice within each stage and style of relationshipRead MoreEthological Theory of Attachmen t: The Development of Emotion in Children1803 Words   |  7 Pagesin Understanding the Development of Emotion in Children from Adversity? Introduction Attachment theory has been jointly worked out by John Bowlby and Mary Ainsworth. In presenting this theory, both of them have drawn out ideas from the fields of ethology, cybernetics, information processing, developmental psychology, and psychoanalysts. However, John Bowlby is the chief contributor who has originated the essential tenets of the theory. Thus, he has revolutionized the thinking of general publicRead MoreAttachment : A Deep And Enduring Emotional Bond1313 Words   |  6 Pagesperson to another across time and space’’ Mary Ainsworth (1973) In this essay I will explore the meaning and purpose of attachment and discuss research into attachment concentrating on John Bowlby’s 1944 â€Å"44 thieves† study conducted to test his maternal deprivation theory and Schaffer Emerson’s 1964 â€Å" Glasgow babies† study. There are two approaches to attachment; evolutionary theory and behavioural theory, and for the purposes of thisRead MoreThe Theory Of Attachment Theory1510 Words   |  7 PagesAttachment theory was advanced in 1951 by British psychoanalyst and psychiatrist John Bowlby. According to this theory infants have an inborn need to be close to their main caretaker. If the attachment is deprived from an infant Bowlby argued that the infant could suffer from negative impacts on their development. This could possibly imply that children places in early daycare will later in life suffer consequences for this. The basis of attachment theory can be linked to Sigmung Freud s (1926)Read MoreTheories And Research Studies Into Attachment1227 Words   |  5 PagesBritish psychoanalyst John Bowlby (1907-1990) who described it as a ‘lasting psychological connectedness between human beings’ (1988). According to psychologist Mary Anisworth attachment â€Å"may be defined as an affectional tie that one person or animal forms between himself and another specific one-a tie that binds them together in space and endures over time: Attachment is a bond that develops between an infant and their main caregiver usually the mother. Researchers Bowlby, Anisworth, Main and SolomonRead MoreThe Attachment Theory and Factors Damaging to Attachment1163 Words   |  5 Pagesgrow into substantial individuals who can thrive in an often harsh world. Constructing lasting and fulfilling relationships is an integral part to development as the interpersonal bonds forged are not only highly sought after bu t also set the ground work for all upcoming expressive interactions. Relationships and attachment go hand in hand as attachment is the strong and lasting linkage established between a child and his or her caregiver. Moreover, attachment significantly influences a large capacity

High school Free Essays

The alumni association plays an important role in any educational institutions or organizations. It exhibits the excellence of quality education imparted to every students, gives comprehensive development for all the students, and helps them become academically strong. The kind of education provided by the school gives a good reputation to their alma mater. We will write a custom essay sample on High school or any similar topic only for you Order Now Like most alumni, they would like to come back to their school which has played a very important part of their memory. The alumni association organizes several vents, publishes news and updates, and helps gather every members of the association. SST. Paul College of Magmata (SPAM) is a coeducational catholic private school located at D. M. Riviera Street, publication, Magmata City. It was established in the year 1942 under the administration of the Sisters of SST. Paul of Chartres. The school offers preschool, grade school and high school. Originally, the SPAM had only one department that offered education to students in grade school. As years passed by, the school then had its first batch of graduates in 1949. In 2002, the SPAM accommodated further velveteen plans such as the operation of the High School Department. In which, the school administration constructed a new building to house the High School Department which later on turned over its first batch of high school graduates of 1 33 students in 2006. In 2007, the High School Department was given full government recon action by the Department of Education. SST. Paul College of Magmata Alumni Association (SPAM) was established in 2002 and was registered in Security and Exchange Commission (SEC) in 2014 with the mission that serves to strengthen links among fellow Pauline graduates of SSL Paul College of Magmata. SPAM aims to encourage and gather SPAM alumni to reconnect with one another and revisit their alma mater. For in reconnecting and revisiting, they will remember their foundation which is anchored on Pauline values and ideals. Just as they were molded into holistic individuals, SPAM takes part to ensure the continuing Pauline Ian path to excellence and spiritual inspiration from generation to generation. SPAM envisions a community of Philippians who are active participants in pursuing the Pauline mission as they set out to the world. As they endeavor towards these ideals, they will be able to renew their ties as one Pauline family strongly linked to their alma mater – their second home. As to what the school would say â€Å"the love of Christ impels us†, they as well extend service and love to fellow Pauline graduates and undergraduates, to society at large, and to anyone in need. As of 2014, the SPAM has a total of 1,444 high school alumni since 2006. Currently, the SPAM has a set of officers who organizes the association. The officers are composed of president, vice president, secretary, assistant secretary, reassure, assistant treasurer, auditor, public relation officer. The school principal/directress regulates and oversees the overall activities of the association. Before the association was developed, Drab. Celeriac V. Papa- Militant, MD, CAP was the one who entrusted in the position as the President of the SPAM. Every alumni association must have a person who is in charge of the many tasks. Recently Ms. Rosemary Gambit was appointed by the school administration to be the alumni moderator or coordinator of the association. Ms. Gambit is responsible In communicating with the alumni, in- hare in organizing the social gathering, events and other agendas of SPAM. All information of each alumni members are being maintained by the guidance personnel which helps the alumni coordinator maintain the connections between the association and the alumni. BUSINESS PROCESS AND RULES Updating of Alumni Information Alumni information are updated through statuses posted in SST. Paul College of Magmata Guidance official Faceable page. The guidance personnel who are responsible to update alumni information post statuses and send messages informing alumni to update their Current information such as education, org, civil status and other alumni details. Often times, alumni do not respond immediately to the statuses and messages in Faceable. The information of alumni who provide their updated details are being consolidated in an Excel file. The guidance personnel also send emails to update their information as the same process used in Faceable. For some instance when alumni visit the school for whatever purposes like requesting school documents, they are being asked to fill up a form called Visiting Graduates’ Log Sheet. The information provided in the Visiting Graduates’ Log Sheet are not consolidated in an effective and stable database as the information stay written on the log sheet. When alumni are asked to provide the information in Visiting Graduates’ Log Sheet, it is necessary to supply all the information as required. Tracing of Alumni Same as updating of alumni information, tracking the whereabouts of alumni is being done through Faceable status and messages, emails, and school visits. Alumni fill up the SPAM Registration Form to provide their whereabouts when they visit the school. The information provided in the SPAM Registration Form are not compiled in an effective and stable database as the information stay written on the form. When alumni are asked to provide the information in SPAM Registration Form, it is necessary to supply all the information as required. Dissemination of News and Updates, Events and All Other Announcements The dissemination of news and updates, events and all other announcements is done through Faceable statuses and messages, emails, posters, barraging and parish announcements by the alumni coordinator. Announcement regarding alumni events are published and broadcasted when there are upcoming gatherings and activities. How to cite High school, Papers High School Free Essays I was born on 1998/7/5, in shanghai, china. 9 month i learned how to walk. 3 years old my first day of kindergarten. We will write a custom essay sample on High School or any similar topic only for you Order Now i cried but i also met a lot of cool kids. i learned to read. 4 years old i started to dance and i love dancing. 7 years old i went to elementary school and i was very exciting. i played violin for one year and then i quit. 9 years old lost my first tooth, i’m scared. 10 years old i got a first C in my life. rode my bicycle. 12 years old I went to a good middle school, and most people are very good at study. i felt i’m so lonely and tired. But after 2 weeks, i made a lot of friends and i love my life in my high school. my feet hurt, my doctor told me that i can’t dance anymore, play any spots or P. E. class. 13 years old i moved to america because i got a bad score in my middle school. my parents think that i can’t get into a good high school in china. most my classmates cried, i cried. i really missed them went i first came to here. but after few days, i adjusted my new life and i like my new school taylor middle school. however, i still miss my family members in shanghai and my friends. i still contact them. also took a lot of classes after school to improve my english. 14 years old i became a eighth grader, i felt i’m so mature. i learned a lot from this year. i started to play guitar. 15 years old i went to mils high school. i got a good grade. 19 years old i went to UC berkeley. i met my boyfriend. had a good time in UC berkely. 24 years old graduated from UC berkeley, became a good psychologi st. 26 years old i got married, have a good life. 27 years old got a lot of money and had my first child. 32 years old got my second child. 70 years old i got stomach cancer. 82 years old i died from gastric cancer, i donated my organs. How to cite High School, Papers High School Free Essays High school is the time in our lives to begin exploring options and figure out who we are as individuals, and where we want to go. It is a pathway that guides us to whatever our future holds, but it is also full of commotion, which would transform the slightest bit of misunderstanding into arguments and violence. I recall a classmate of mine transferring school due to a fallacious rumor of him stealing. We will write a custom essay sample on High School or any similar topic only for you Order Now There was no proof; just words from people who â€Å"claim† they believe it were him. Far too many bad things could happen in high school, and they could alter our experiences in negative ways. It wasn’t farfetched to say I was a victim of such calamity. My experience at my current secondary school started off full of excitement. I participated in many different activities and made a great deal of friends, which made me love high school. But there were many quarrels in school, which made life akin to the weather: unpredictable, uncontrollable, and unfair. The defining moment of my sophomore year was a simple misunderstanding that left a deep scar behind. It was a frosty morning, sending chills down my spine as I walked to school for basketball practice, become an ice cube along the way. When the coach dismissed us to my relief, someone’s phone was missing from the volleyball team which was next door. For privacy reasons I am going to give him the alias â€Å"Joe. † The news did not surprise me, but Joe’s friends wanted to search me, and he went through all my belongings. The shock of someone thinking that I took his phone hit me like a bullet. It left me numb and speechless. Feeling helpless like a mouse in a trap, I desperately needed someone to be on my side. The word â€Å"fair† kept on popping up in my mind, and it sparked an anger that had being building. I sought after the people who wanted to put the blame on me. I had no alibi of me not stealing the phone, but likewise they had no evidence of me stealing the phone either. While walking through the halls, I felt like the walls were following me, watching my every step. Everything was blurry. It felt like I have lost control of who I am. My ears overheard my name and gossip about me in the halls, and that was when I lost it. My mind erupted and broke open like a broken dam: every bit of emotion started flowing out. My eyes started to water but I tried my best to suppress the tears. The inevitable had happened: I became the new laughingstock of the school. News spread faster than wild fire in an ancient forest. With rumors flooding in excess, my reputation had taken a hit. I was branded â€Å"The Thief†. This incident impacted me in ways beyond I would ever imagine. I did not make one jump shot at the subsequent practice. People were cautious around me. They kept their phone out of my sight and tried to avoid me in the halls; it seemed like that even teachers seemed to treat me differently, although that must’ve been my imagination. I felt sick; I could not eat or sleep. Everything seemed to become more confounded. I had trouble looking people in the eye, and my heart raced every time someone mentioned the word â€Å"phone†. I would turn around to see whether they were talking about me. Paranoia, it must’ve been. I avoided the volleyball team at all costs, and I did not talk to my close friends. It was excruciating to restrain my demons me while wearing a poker face, hoping others cannot see the pain. The week of the incident simply did not go well. Fortunately, after what had seemed like an eternity of torture, Joe finally found his phone in his friends bag. However, he never apologized to me for blind accusation. I didn’t really care; The pain, and suffering was worth more than a simple â€Å"sorry†! But everything went back to regular routine and school became exciting once more. Looking back, I really couldn’t blame Joe: he lost an iPhone 4S, the newest and most expensive phone at the time. It would be hypocritical of me to say that I would not be infuriated if I had lost my iPhone. High school is a pathway which we all must take. The views and experiences may be different but the concept remains the same. In the eye of a student there are very many negative and few positives about high school. The main point is staying out of trouble’s way and avoiding it at all cost, because one simple misunderstanding could cause you years of pain. People may also blame you for things you haven’t done, but the truth is: life is easier when you have someone else to blame. How to cite High School, Papers