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15
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Why do isotopes have a different mass?
Isotopes have a different amount of NEUTRONS.
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lifesaver
Give 20 points!
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rocket
Go to first place!
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shark
Other team loses 5 points!
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lifesaver
Give 10 points!
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15
×
Define ionic bonding. Give two examples.
Metal + Nonmetal. NaCl, MgS
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15
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Rank the following elements by increasing electronegativity: sulfur, oxygen, and aluminum.
aluminum, sulfur, oxygen
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15
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How many valence electrons does F (fluorine) have?
7
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15
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Define Ionization Energy
the amount of energy needed to remove an electron from an atom.
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15
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Which has a larger atomic radius? Rb or Na Why?
Rb. Increased atomic radii.
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banana
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fairy
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25
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shark
Other team loses 25 points!
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thief
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15
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Define Isotopes.
have the same atomic number (# of protons), but different mass numbers because different NEUTRONS.
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15
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Define Valence Electrons.
Valence electrons are the outer-shell electrons of an atom. Valence electrons determine the reactivity of an atom.
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15
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Define covalent bonding. Give three examples.
2 nonmetals bonded together. CO2, NH3, HF
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15
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What is the element with the lowest ionization energy: Au W S Fr Ne
Fr
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15
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What is the element with the smallest atomic radius: Au W S Fr Ne
Fr
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15
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Write the formula for magnesium bromide.
MgBr2
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lifesaver
Give 25 points!
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star
Double points!
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shark
Other team loses 15 points!
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thief
Give points!
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25
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seesaw
Swap points!
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seesaw
Swap points!
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shark
Other team loses 15 points!
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lifesaver
Give 25 points!
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