Question

Why do isotopes have different physical constants and weight?

Answer 1

• Isotopes have the same atomic number but different atomic mass.
• The physical properties like weight, density, etc depend on the atomic mass.
• The change in physical properties is due to the change in atomic mass, which is due to the change in the number of neutrons in the nucleus of isotopes
• Thus, the physical properties of isotopes differ from each other due to their different atomic mass.