A compound contains 28% N and 72% of a metal by weight . Three atoms of metal combine with two atoms of N . Find the atomic weight of metal.

A compound contains 28% of nitrogen and 72% of a metal by weight. 3 atoms of the metal combine with 2 atoms of nitrogen. Find the atomic weight of the metal.

A compound contains 28% of nitrogen and 72% of a metal by weight. 3 atoms of the metal combine with 2 atoms of nitrogen. Find the atomic weight of the metal. (N = 14)

A compound contains 28g of nitrogn and 72% of metal by weight. In the compound, 3 atoms of metal remains combined with 2 atoms of nitrogen. What is the atomic mass of the metal?

The oxide of a metal contains 40% of oxygen. The valency of metal is 2. What is the atomic weight of metal?