How do we determine the atomic mass of an element with its isotopes?

Write Duiong and Petit’s law. How do you determine the atomic weight of element using this law?

How do you determine the atomic mass of an unknown metal if you know its density and dimension of its unit cell ? Explain .

What do you understand by atomic mass of an element?

If the average atomic mass of an element having two isotopes is 71, the ratio of the natural abundance of the two isotopes of mass 70 and 74 will be

Why does not the atomic mass of an element represemt the actual mass of its atom ?

If the density and the dimension of unit cells of a metal are known, then how can you determine the atomic mass of the element?