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15
×
If Beryllium is electrically neutral, how many electrons does it have?
4
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15
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How many protons does Calcium have?
20
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monster
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fairy
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5
10
15
20
25
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fairy
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5
10
15
20
25
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baam
Lose 15 points!
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15
×
The atomic mass of an element is the weighted average of the masses of all its ______ that occur naturally
neutrons
isotopes
protons
electrons
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15
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What do these isotopes of carbon all have in common?
atomic number and neutrons
atomic number and electrons
neutrons and mass number
protons, atomic number, and mass number
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15
×
If Arsenic has a charge of -3, then how many electrons does it have?
36
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15
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For an atom to have an overall negative charge
electrons were lost
electrons were gained
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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 and neutrons
the number of protons
the number of neutrons
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15
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How many neutrons does an atom of the isotope Neon-22 have?
12
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banana
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rocket
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rocket
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thief
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25
15
×
How many neutrons in C-14?
8
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15
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The atomic number represents the number of...
protons
electrons
ions
neutrons
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15
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In uranium - 235 what does 235 represent?
mass number
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15
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If you want to determine the total number of protons and neutrons in an atom, you can refer to the...
mass number
atomic weight
ion number
atomic number
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15
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If Aluminum has a charge of +3, how many electrons are present?
10
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lifesaver
Give 25 points!
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gold
Win 50 points!
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rocket
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baam
Lose 20 points!
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