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Metals, Nonmetals, and Metalloids
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Why do we use metals to make our pots and pans?
metals conduct heat
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True or False: Most of the nonmetals are solid at room temperature.
False. Most are gases.
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____ is the most commonly found metalloid on Earth.
Silicon
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Which side of the periodic table has LESS reactive elements?
right side
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Which two groups of elements are located UNDER the rest of the table?
actinides and lanthanides
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The Noble Gases have ___ valence electrons.
8
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Why is Hydrogen a "weird" nonmetal off by itself with the metals?
It has 1 valence electron like the Alkali metals
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True or False: Most nonmetals are good conductors.
False. Most do NOT conduct heat or electricity.
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Which family has characteristics of both metals and nonmetals?
Metalloids
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___ is the group of elements beside the Noble Gases.
The Halogens
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True or False: Alkali metals are not found uncombined in nature.
True
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The ____ group of nonmetals are harmful to humans when not found in compounds.
The Halogens. For example, Chlorine
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Where are the nonmetals located on the periodic table?
on the right side
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When an element can be a conductor one minute and an insulator the next, it is called a ____.
Semiconductor
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Which group has only 2 valence electrons?
Alkaline earth metals
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An element's reactivity has to do with which subatomic particle?
electrons
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The ability to be made into wire is called ____.
ductility
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