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What period is f (fluorine) in?
a) 17
b)2
c)7a
d)7b
Answers: 1
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1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
Answers: 1
What period is f (fluorine) in?
a) 17
b)2
c)7a
d)7b...
a) 17
b)2
c)7a
d)7b...
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