Question

Differentiate between Atomic Number and Mass Number?

Answer 1

Dear Student

1.
Atomic Number: Atomic number is the number of protons present in an atom.

Mass Number: Mass number is the sum of the number of protons and the neutrons of an atom.

2.
Atomic Number: The number of neutrons does not affect the atomic number of an atom.

Mass Number: The number of neutrons does not affect the mass number of an atom.

3.

Atomic Number: Isotopes have the same atomic number.

Mass Number: Isotopes have different mass numbers.

4.

Atomic Number: Isobars cannot have the same atomic number.

Mass Number: Isobars have the same mass number.

5.

Atomic Number: The atomic number is always a smaller value than the mass number.

Mass Number: The mass number is always a larger value than the atomic number.

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