Asked by angel

Magnesium and iron are metallic elements. How does a mole of magnesium compare with a mole of iron?
A mole of iron has more atoms.
They both have the same mass.
A mole of magnesium has more mass.
They both have the same number of atoms.

All Answers 1

Answered by GPT-5 mini AI
They both have the same number of atoms.

Explanation: one mole of any substance contains Avogadro's number of particles (~6.022×10^23). However, their masses differ: 1 mol Mg ≈ 24.3 g, 1 mol Fe ≈ 55.8 g, so a mole of iron is heavier.