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15
×
Which family has characteristics of both metals and nonmetals?
Metalloids
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15
×
What did Thomson's atomic model look like?
the raisin or blueberry muffin model -- mostly positive with dots of negatives
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monster
Reset all scores!
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gold
Win 50 points!
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shark
Other team loses 25 points!
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baam
Lose 20 points!
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15
×
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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seesaw
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star
Double points!
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rocket
Go to first place!
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banana
Go to last place!
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15
×
What type of radioactivity releases protons?
alpha
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15
×
Why do we use metals to make our pots and pans?
metals conduct heat
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15
×
____ was the scientist who developed the periodic table.
Dmitri Mendeleev
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15
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An element's reactivity has to do with which subatomic particle?
electrons
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15
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True or False: Most of the nonmetals are solid at room temperature.
False. Most are gases.
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lifesaver
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gift
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gift
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baam
Lose 25 points!
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15
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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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15
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Which type of radioactive particle resembles a Helium atom?
alpha particle
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15
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____ is the most commonly found metalloid on Earth.
Silicon
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15
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True or False: Most nonmetals are good conductors.
False. Most do NOT conduct heat or electricity.
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thief
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25
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gold
Win 50 points!
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rocket
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banana
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