Question

define atomic number and atomic weight ??

Answer 1

Atomic number denotes the number of electrons in an atom.

Atomic weight denotes the weight of nucleus.

Answer 2

Answer:

• The atomic mass is the mass of an atom. Although the SI unit of mass is kilogram, the atomic mass is often expressed in the non-SI unit dalton where 1 dalton is defined as ¹⁄₁₂ of the mass of a single carbon-12 atom, at rest.