You have a 236.5 gram sample of iron, calculate the number of atoms of iron in this sample.

236.5 * 10^22

Brainliest would be appreciated!

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates