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Team 2
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Teams
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seesaw
Swap points!
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rocket
Go to first place!
Okay!
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rocket
Go to first place!
Okay!
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banana
Go to last place!
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10
×
When an atom loses an electron, it becomes ___.
an ion
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10
×
The electrons involved in bonding are ___ electrons.
valence
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15
×
Give one property of an ionic compound.
crystal structure, conducts heat and electricity, high boiling point
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15
×
In the chemical formula for hydrogen peroxide (H2O2) what do the 2's mean?
There are 2 hydrogen atoms and 2 oxygen atoms in it
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15
×
What is the chemical name for the compound Na2S?
Sodium sulfide
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lifesaver
Give 25 points!
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gift
Win 5 points!
Okay!
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gift
Win 15 points!
Okay!
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baam
Lose 20 points!
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10
×
When electrons are transferred between two atoms, a ___ bond is formed.
Ionic
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10
×
When an atom gains an electron, it becomes ___.
Negative
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10
×
How do we draw a bond between two atoms?
two dots (electrons) or a dash line
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15
×
Which of these is a property of ionic compounds?
cannot conduct electricity
low melting point
brittle
low boiling point
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5
×
How many electrons make an atom "happy"?
8
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15
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How does a covalent bond hold two atoms together?
The nucleus of the atom is positive and the electrons of the other atom is negative, they attract to each other
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15
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The attraction between a positive metal ion and the electrons surrounding it is ___.
a metallic bond
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15
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Stainless steel and bronze are examples of ___.
an alloy
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boom
Lose 50 points!
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seesaw
Swap points!
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rocket
Go to first place!
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thief
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5
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25
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