Sincerely, Kylee Hargrove, Taylor Abercrombie, Brennan Harris,
and Reese Wright..........
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In the Periodic Table a group(also known as a family) is a
vertical column of the chemical elements. There are 18 groups in
the standard Periodic Table. The modern explanation of the pattern
of the table is that the elements in a group have similar
configurations of the outer most electron shells of their atoms: as
most chemical probertiea qre dominated by the orbital location of
the outermost electron.
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In the periodic table of the elements, elements are arranged in
a series of rows (or periods) so that those with similar properties
appear in vertical columns. Elements of the same period have the
same number of electron shells; with each group across a period,
the elements have one more proton and electron and become less
metallic. This arrangement reflects the periodic recurrence of
similar properties as the atomic number increases. For example, the
alkaline metals lie in one group (group 1) and share similar
properties, such as high reactivity and the tendency to lose one
electron to arrive at a noble-gas electronic configuration.
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A metal is a chemical element that is a good conductor of both
electricity and heat and forms cations and ionic bonds with
non-metals. In chemistry, a metal is an element, compound, or alloy
characterized by high electrical conductivity. In a metal, atoms
readily lose electrons to form positive ions. Metal is also know
for its high tensile strength and malleability.
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Non-metals are the elements in groups 14-16 of the periodic
table. Non-metals are not able to conduct electricity or heat very
well. As opposed to metals, non-metallic elements are very brittle,
and cannot be rolled into wires or pounded into sheets. The
non-metals exist in two of the three states of matter at room
temperature: gases (such as oxygen) and solids (such as carbon).
The non- metals have no metallic luster, and do not reflect light.
The Non-Metal elements are: Hydrogen Carbon Nitrogen Oxygen
Phosphorus Sulfur Selenium
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Metalloids have properties of both metals and non-metals. Some
of the metalloids, such as silicon and germanium, are useful in
semi-conductors. This property makes metalloids useful in
electronic componets. Mettalloids are located in a stair-step shape
between the meatals and non- metals. This line is drawn from
between Boron and Aluminum to the border between Polonium and
Astatine.
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The lanthanide elements are the group of elements with atomic
number increasing from 58 (cerium) to 71 (lutetium). They are
termed lanthanide because the lighter elements in the series are
chemically similar to lanthanum. Strictly speaking lanthanum is a
group 3 element and the ion La^3+ has no f electrons. However this
element is often included in any general discussion of the
chemistry of the lanthanide elements.
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The Actinides are a collection of 14 radioactive elements named
after the element actinium. They also have no stable isotopes.
Actinides share the following common properties: All are
radioactive. Actinides are highly electropositive. The metals
tarnish readily in air. Actinides are very dense metals with
distinctive structures. Numerous allotropes may be formed
(plutonium has at least 6 allotropes!). They react with boiling
water or dilute acid to release hydrogen gas. Actinides combine
directly with most nonmetals.
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Pu
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The six noble gases are found in group 18 of the periodic
table. These elements were considered to be inert gases until the
1960's, because their oxidation number of 0 prevents the noble
gases from forming compounds readily. All noble gases have the
maximum number of electrons possible in their outer shell (2 for
Helium, 8 for all others), making them stable. Helium Neon Argon
Krypton Xenon Radon
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Metals:left and center Non Metals:right side Noble Gases:right
side, except for hydrogen Metalloids:stair-step shape between
metals and non-matals Lanthanides/Actinides:at the
bottom(57-71,89-103)
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There were no subliminal messages in this video, thanks.