How many atoms are in 11.9 moles of chromium?

Explanation:

We know that in 1 mole of any substances there are atoms

This number () is a constant that is known as the avogadros number

if we know how many atoms are in a mole of chromium to calculate how many there are in 11.9 moles we apply a simple rule of three

In 11.9 moles of chrome there are atoms

you need to have a picture of the atom that way we can answer it