Elaborate on the fundamental difference between fission and fusion reactions.

a) fission is a redox reaction while fusion is a decomposition reaction.
b) fission is a decomposition reaction while fusion is a synthesis reaction.
c) fission is a precipitation reaction while fusion is a solvation reaction.
d) fission is a synthesis reaction while fusion is a neutralization reaction.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.