How many electrons are in the nucleus of an atom with an atomic number of 16?
O None, Electrons are not in the nucleus
O 8
0 16
0 32

None, Electrons are not in the nucleus

They are present in orbits or energy shells.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

the endomembrane system i think