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15
×
For an atom to have an overall negative charge
electrons were gained
electrons were lost
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15
×
How many neutrons does an atom of the isotope Neon-22 have?
12
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15
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Which atom has 4 neutrons?
Li-7
Li-8
Li-6
they have the same # of neutrons
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15
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Isotopes differ in the number of
neutrons
protons
electrons
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15
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The atomic mass of an element is the weighted average of the masses of all its ______ that occur naturally
isotopes
electrons
neutrons
protons
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15
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The atomic number represents the number of...
neutrons
electrons
protons
ions
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15
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How many neutrons in C-14?
8
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15
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If Beryllium is electrically neutral, how many electrons does it have?
4
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15
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If Arsenic has a charge of -3, then how many electrons does it have?
36
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15
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What is the mass number defined as?
the number of protons and electrons
the number of protons
the number of neutrons
the number of protons and neutrons
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15
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How many protons does Calcium have?
20
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trap
No points!
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gold
Win 50 points!
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×
fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 15 points!
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15
×
If Aluminum has a charge of +3, how many electrons are present?
10
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heart
Other team wins 20 points!
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rocket
Go to first place!
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gift
Win 5 points!
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×
baam
Lose 10 points!
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×
heart
Other team wins 25 points!
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×
shark
Other team loses 25 points!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
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15
×
A charge of +2 means you have
more electrons than protons
more protons than electrons
more protons than neutrons
more electrons than neutrons
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