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

How can you determine the atomic mass of an unknown metal if you know its density and the dimensions of its unit cell ? Explain your answer.

How can you determine the poles of a magnet which has no markings on it?

How will you express gram atomic mass in terms of moles?

What do you mean by electric energy ? Give the definition of its unit.

A face centered cubic element (atomic mass =60) has edge length of 400pm. What is the density of unit cell