Tag: define Atomic Mass Unit

Atomic Mass Unit

Atomic Mass Unit: An atom is the smallest particle that can take part in a chemical reaction. It is so small and so light that it cannot be weighed by any laboratory balance. For instance, the masses of hydrogen, oxygen and silver atoms are 0.1673 X 10-23 g, 2.657 X 10-23 g and 17.9 X 10-23 …