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

Question

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

anonymous · Answer

@abb0t can you walk me through this one man?

abb0t · Answer

What do you know about iron AND magnesium. Look at your periodic table.

anonymous · Answer

both period 4 and right next to each other?

anonymous · Answer

@abb0t mass isn't the same but close?
my best guess is d.