Question

Space in the atom Is empty Ansues Assertion is false but reason is true. Isotopes are electrically neatral A Isotopes are species with same mass number but different atomic numbers. B​

Answer 1

Relative atomic mass or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. The atomic mass constant is defined as being 1/12 of the mass of a carbon-12 atom.