Question

The atomic mass of calcium is 40 unit. Whatwill be the number of calcium atoms is 0.4unit of calcium?

Answer 1

Explanation:

the atomic mass of calcium is 40u what will be number of calocium atom in 0.4u of calcium. But the single Ca atom is 40 u and we cannot find the number of atoms in 0.4 u because the number cannot be less than one. Please note the difference between amu and gram, mass of single atom and one mole atom.