Ocean County College Department of Chemistry Identification of Metallic Ions Purpose: The purpose of this lab exercise was to perform and observe the flame tests of some alkali and alkaline earth metal ions. When electrons in metallic ions are grounded‚ their configuration is stable. In other words‚ the loosely bound electrons in the valence shell of the atom are satisfied at their “low” energy state. They do not require to be balanced by emitting any type of radiation or receiving any
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Taking a Stand Essay Our great Scientist and technologist who developed automobile had make life easier for us to travel on automobile faster than ever. In the past‚ use of an electronic device while a driver is in motion‚ has led to accidents which have taken several lives. The use of electronic devices while a driver is in motion should be prohibited in every State‚ because drivers who use an electronic device while driving‚ are putting their lives in a great danger and can ruin other people’s
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I https://www.oppapers.com/join.php#submit . Experiments with Metals and Ions of Metals Introduction Metals are similar in their physical properties in general‚ but they are not identical. Most of the metals are solids; few of them are liquids‚ such as mercury and cesium. Density of metals is not similar also. For example‚ sodium has density of 0.97g/cm3 while lead has density of 11.4g/cm3. Melting point of sodium is 98.0oC while for lead it is 327.6oC. Metals have the capability
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Every weekend there are young adults ages eighteen to twenty engaging in underage drinking at parties. Alcohol plays a huge role in today’s’ society. More people drink today than ever before. It is clear that alcohol has had a good impact on people’s lives‚ but it is more clear that it has had an negative impact on people’s lives. Alcoholic beverages include good things such as happiness for celebrations. Downfalls of alcohol include DUIs‚ addictions‚ and death. Young adults break the law on a regular
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What Should the Legal Drinking Age Really Be? Throughout the years in American history‚ alcohol has always been debated. It has been debated on whether or not to even allow its consumption in the United States‚ and what age is appropriate for Americans to start drinking alcohol. Many people believe that one is not mature enough to handle alcohol at any age below twenty-one‚ because they will abuse it. This leads them to believe that the current legal drinking age should stay at twenty-one. However
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of electrons. 2. An atom can NEVER gain or lose protons 3. The number of protons equals the atomic number NAME:________________________________________ Ion Practice Set 1. What is an ion? 2. What does the number next to the ions signify? Complete the following table‚ using the periodic table in the back of your book. ELEMENT NAME ION SYMBOL NUMBER OF PROTONS NUMBER OF ELECTRONS NUMBER OF ELECTRONS LOST OR GAINED ex Fluorine F- 9 10 gained one 1 2 3 4 5 6 7 8 9 10 11
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Ion Exchange Chromatography Discussion: The first exercise preformed in this lab was ion exchange chromatography. The purpose of this experiment is to separate molecules based on their differences in charge. Since it is based on charge the amino acids in the cation exchange column‚ if negatively charged‚ flow through the column first because they don’t want to bind to the sodium ions. The positively charged ions will elute last at the highest ph because they bind to the negatively charged beads
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minimum drinking age. In order to avoid its citizens from receiving such harmful effects‚ the United States should have a high minimum drinking age. A high minimum drinking age will not only save lives‚ but also save families from suffering through an alcohol related tragedy. During the time the minimum drinking age was 18‚ a man lost his pregnant wife and child in a car accident because an 18 year-old woman driving under the influence had rammed into their car while they were driving one night
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Importance of Calcium Ions Alyssa Foels 12 February 2015 Kilfe Calcium is a cation‚ a positively charged atom‚ and it is essential to all living things. It was first discovered in 1808 by Humphrey Davy. When forming an ionic bond with other elements‚ calcium loses electrons to make its valence shell stable. This means that it has more protons than electrons‚ making it have a slight positive charge (Calcium). Calcium has many roles and functions in the human body. Calcium ions are the most abundant
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Maintaining Current Drinking Age Recently‚ the current drinking age has become a major topic of discussion amongst Americans with whether it is too old or just right. Recent studies have shown that underage drinking has become a major problem in the United States‚ not only because it is illegal for them‚ but because people underage have shown they do not know how to drink in moderation and responsibly. Another reason the current drinking age should be maintained is because drinking has caused many
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