The covalent bond and molecules

1 fluorine has 7 valence elctrons which of the following is true of a fluorine molecule (F2)
each fluorine atom will take 1 valence electron from the other and this will constantly happen back and forth
a pair of electrons will be shared between the fluorine atoms
twelve valence electrons will travel around each fluorine atom, but only 2 will remain around their respective atoms
only 4 valence elecrtons will travel around each fluorine atom
2 which of the following compounds is a molecule
AlCl3
MgBr2
H2
NaCl
3 which of the following compounds contains a triple bond
acetylene
chlorine
methane
ammonia
4 which compound has the highest boiling point
C6H12O6
H2O
O2
NaCl
5 what is the name of the compound with the formula CCl4
tetrachlorine carbide
carbon chloride
chlorine carbide
carbon tetrachloride

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