Electrons are valence and free moving so they take place in charge transfer
So what do you want me to do
Explanation
Answer: An atom can join with other kinds of atoms.
PLEASE GIVW ME BEAINLY LOLLL
Their weights could be different.
Their volumes could be different.
Their densities could be different.
The volume for an ounce of lead is much different than an ounce of aluminum.
the weight of a cubic meter of balsa wood is much different (and much lighter) than a cubic meter of water. That's why the ancients used balsa for their rafts.