What is atomic mas unit?

What is atomic mass unit?

What is atomic mass unit (amu)?

What is atomic mass unit (amu) ?

What is atomic mass unit ? Describe.

What is atomic mass unit (amu)?

The elements crystallizes in a body centered cubic lattice and the edge of the unit cell is 0.351nm. The density is 0.533g//cm^(3) . What is the atomic mas?