How many atoms of nitrogen (N) are in this compound?
3 Pb(NO3)4

12 nitrogen atoms

Explanation:

This is essentially 3 molecules of Lead (IV) Nitrate, And since there were originally 4 nitrogen atoms in this single ionic compound, there are now 12 total

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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