Question

Define atomic number and mass number with suitable example? ​

Answer 1

Answer:

The atomic number is the number of protons in the nucleus of an atom.

The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.

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Answer 2

Answer:

atomic number : number of protons in a atom

mass number : total number of protons and neutrons