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Atomic Number Essays and Term Papers
Atomic Theoryis the study of atoms. Atoms are the smallest forms
of matter that can still be considered/recognized as elements. Atoms are
what make up everything on our earth, from molecules to monkeys. Atoms are
joined together to make molecules, which are in turn joined together to
make everything else. To ...
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Bariumis the 14th most common element of the Periodic Table of Elements. It makes up 1/2000th of the crust of the earth. Its atomic number is 56, and its atomic symbol is Ba. The atomic weight of is 137.34. is a silver-colored metal. is in group 2 (or IIa) of the periodic table. It belongs to the ...
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Lead And The EnvironmentSome materials are so commonplace that we take them for granted. One of
those materials is a grayish metal that has been with us for thousands of years.
That metal is lead, still one of the world's most useful substances, and one
that never ceases to find a role in human society.
Lead has the ...
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The Element: ChlorineGeneral Information
We researched the chemical element known as chlorine. Chlorine has
an atomic number of 17 and an atomic weight of 35.453. It has a
valence number of 3. The element has 3 energy levels. Chlorine exists
as a greenish-yellow gas at normal temperatures and pressures. Chlorine
is ...
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Copper ReportCopper comes from a Latin term cyprium (after the island of Cyprus) meaning "the metal of Cyprus." Copper dates back to prehistoric times but has been mined for 5000 years, however it's exact discoverer is unknown. Cu is Copper's chemical symbol. It contains 29 protons/electrons (atomic number) ...
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CobaltMy report is about the element . is the 27th element on the
periodical table and has an atomic number of twenty-seven. It has a symbol of
Co. ¹s atomic weight is 58.9332. It has a melting point of 1,490š C. and
a boiling point of 2,900š C. looks almost exactly like iron and nickel.
Cobalt ...
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Platinum, symbol Pt, is a relatively rare, chemically inert metallic
element that is more expensive than gold. The atomic number of is
78. is one of the transition elements in group 10 of the periodic
table. is the most important of the group of elements called the
metals, also included in this ...
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Mercuryis a metallic element that is a liquid at room temperature, it
is one of the transition elements. 's atomic number is 80. It is
superconductive when cooled to within a few degrees of absolute zero.
was once known as liquid silver or quicksilver which was studied by the
alchemists. Mercury ...
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ArsenicPhosphorus (P), (As), antimony (Sb), and bismuth (Bi) form a group of four elements in Group 5A of the periodic table. They exhibit increasing metallic properties going down the group. Nitrogen (N), which heads the group, is a colorless, odorless, and tasteless gas. Phosphorus is a highly ...
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CarbonWithout the element of , life as we know it would not exist.
provides the framework for all tissues of plants and animals. They are
built of elements grouped around chains or rings made of atoms.
also provides common fuels--coal, oil, gasoline, and natural gas. Sugar, starch,
and paper are ...
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Plutoniumis a radioactive metallic element. Although it is occasionally
found in nature, mostly all of our is produced artificially in a lab.
The official chemical symbol for is Pu, coming from its first and
third letters. Its atomic number is ninety-four. is able to maintain
its solid state until very ...
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Helium, symbol He, inert, colorless, odorless gaseous element. In
group 18 (or VIIIa) of the periodic table, is one of the noble gases.
The atomic number of is 2. The French astronomer Pierre Janssen
discovered in the spectrum of the corona of the sun during an
eclipse in 1868.
Helium is the ...
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Mercury’s symbol is Hg, its atomic number is 80, its atomic mass is 200.59, its in group 12 and in period 6, and it also has two valence electrons. Its standard state is liquid at 298ºK and it is the heaviest known elemental liquid. It has a silvery white color. It is named after the planet "" ...
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Iron And RustIron is a silvery solid white metal that can be found in Group VIII
of the periodic table. Iron’s atomic weight is 55.847 and its atomic
number is 26. Its chemical symbol is Fe. Iron can be found in the Earth’s
crust and is the fourth most abundant element in the Earth’s crust.
Rust, otherwise ...
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ThalliumMy element was . It is atomic number 81. It has 81 protons and
electrons and 123 neutrons. has a mass of 204.3833 atomic mass units.
Its symbol is Tl. It resides in Group IIIA of the periodic table. That is the
aluminum family. has a bluish color after exposure to the air. It is
a very ...
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Gold, one of the most fascinating elements on the earth today.
has been used by humans for almost six thousand years and has been valued
since the earliest of times for its beauty and resistance to corrosion.
Without the economy of the world be drastically changed.
I have chosen as my element ...
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UraniumChapter 1
Locations
Large deposits of in the U.S are found in New Mexico,
Colorado, Texas, Utah, and Wyoming. Most of Canada's Uranium comes from the
province of Saskatchewan. There is a lot of Uranium in the oceans but we do
not have the technology to mine it at a cheap cost.
Chapter ...
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Chlorineis (at room temperature) a greenish-yellow gas that can be
readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a
very disagreeable odor. It’s Element Symbol is Cl, atomic number is 17, and
atomic mass is 35.453. ’s melting point is -101 C or 149.8 F. The
boiling point is ...
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Ironin its pure state is soft, malleable and ductile (that can be
stretched, drawn or hammered thin without breaking ((Webster's Dictionary, 419,
1988)) with a hardness of 4-5. It is easily magnetized at room temperatures and
this property disappears when heated above 790 degrees Celsius.. Metal ...
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Lithium ReportLithium (Li)
Atomic Number: 3
Atomic Mass: 6.941
Description:
Lithium is a soft, silvery-white metal which reacts vigorously with water and has the lowest density of all metals. It comes from the alkali metal group which is found on the periodic table of elements.
Discovery ...
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