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.

asib1214 · Answer

one mole of any element has the same number of atoms....6.022X10^23 atoms so A is not right.

asib1214 · Answer

every element has it's own unique mass according to the size of the atom, mass etc... so b is wrong.

asib1214 · Answer

C is false....mass of magnesium is NOT more than one mol of iron. it's actually less.

asib1214 · Answer

The last one is right. They have the same number of atoms.

anonymous · Answer

Thank you so much! The explanations help a lot with the other questions too :)