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15
×
What element is represented by the Bohr model?
Lithium
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15
×
The number of valence electrons for elements in Group 16 is _____.
6
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15
×
What particles form the nucleus of an atom?
protons and neutrons
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15
×
By knowing the number of protons a neutral atom has, you should be able to determine
the number of neutrons in the neutral atom
two of these
the number of electrons in the neutral atom
the name of the atom
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15
×
How are ions formed?
By adding or taking away an electron from an atom
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15
×
T or F. Oxygen-18 and Fluorine-19 have the same number of neutrons.
True
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lifesaver
Give 20 points!
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magnet
Take 15 points!
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gift
Win 5 points!
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banana
Go to last place!
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15
×
Which scientist discovered the electron?
Thomson
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15
×
T or F. Carbon-14 and Nitrogen-14 are isotopes of each other because their mass numbers are the same.
False
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15
×
Which one of the following statements about atomic structure is false?
Protons and neutrons in the nucleus are very tightly packed
Almost all of the mass of the atom is in the nucleus
An atom is mostly empty space.
Proton & neutron number is always the same in a neutral atom
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thief
Give points!
5
10
15
20
25
×
rocket
Go to first place!
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shark
Other team loses 5 points!
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baam
Lose 20 points!
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15
×
How many valence electrons does this element have?
3
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15
×
An element has an atomic number of 80. How many protons and electrons are in a neutral atom of this element?
80 protons and 80 electrons
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seesaw
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fairy
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10
15
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25
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gift
Win 10 points!
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lifesaver
Give 10 points!
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15
×
Isotopes of the same element can differ in
mass number/number of neutrons
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heart
Other team wins 10 points!
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gift
Win 20 points!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 25 points!
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