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10
×
Sodium and Chlorine combine to make NaCl. Which of the two elements will become a positive ion?
sodium
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trap
No points!
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rocket
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gift
Win 25 points!
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banana
Go to last place!
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15
×
Why do ionic compounds have high melting and boiling points?
There are strong electrostatic forces of attraction holding the oppositely-charged ions together.
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10
×
Atoms become more stable when they have a full set of valence electrons. For most atoms, how many electrons are needed for a full set?
8
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5
×
Do Group 8 elements form bonds with other elements?
No
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15
×
How many valence electrons does hydrogen need to have a full set of valence electrons?
2
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seesaw
Swap points!
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star
Double points!
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fairy
Take points!
5
10
15
20
25
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thief
Give points!
5
10
15
20
25
15
×
A nitrogen atom forms a ________ covalent bond with another nitrogen atom.
triple
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10
×
The electrons involved in chemical bonding are __________ electrons.
valence/outer shell
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10
×
What type of bond will form between Br and I?
covalent
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10
×
What type of bond is shown in this compound?
ionic bond
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10
×
What type of bond is shown in this compound?
covalent bond
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5
×
When non-metal atom shares electrons with non-metal atoms, what type of bond is formed?
covalent bond
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15
×
When one atom shares two pairs of electrons with another atom, what is the bond formed?
double covalent bond
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10
×
Why don't noble gases form bonds with other elements?
They have a full outer shell of electrons.
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boom
Lose 50 points!
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rocket
Go to first place!
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shark
Other team loses 5 points!
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banana
Go to last place!
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