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15
×
Why do non-metals tend to form covalent bonds?
They have similiar electronnegativities, neither is strong enough to attract electrons from the other
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15
×
What is the difference between atomic number and mass number?
Atomic number = how many protons an element has, mass number = neutrons + protons
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15
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Atoms that have an electric charge due to gain or loss of electrons are called _______
ions
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25
×
which two non metals form large covalent lattice structures?
carbon (diamond) silicon (sand)
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trap
No points!
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shark
Other team loses 20 points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
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Aluminium oxide (AlO) covalent or ionic
ionic
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15
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What do elements in the same column of a periodic table have in common
They have the same number of valence electrons
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15
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T/F covalent compounds form small molecules and have low melting points
T
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15
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How many electrons fit into the first, second, and third electron shells?
2,8,18
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15
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name three non metals
named
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15
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Where non-metals located in the periodic table?
Right side, last-three columns
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15
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T/F covalent compounds are between nonmetal and nonmetal
True
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15
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true or false Ionic compounds have high melting points
true
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monster
Reset all scores!
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shark
Other team loses 25 points!
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rocket
Go to first place!
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banana
Go to last place!
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monster
Reset all scores!
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star
Double points!
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shark
Other team loses 15 points!
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baam
Lose 10 points!
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banana
Go to last place!
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seesaw
Swap points!
Okay!
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shark
Other team loses 10 points!
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baam
Lose 15 points!
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×
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