The mass of one atom of a substance is 1.497x10-23g. This substance is

A) F B) N C) Be D) Li E) He

How do you solve this =/

If you can find the molar mass, that will tell you the atomic mass of the element.

Since 1 mole = 6.023 x 10^23 atoms, 1 mole of this element will weigh

(6.023 x 10^23 atoms/mol)(1.497 x 10^-23 g / atom) = 9.02 g/mol

This matches well with beryllium, Be

idk