Question

Define atomic number and mass number short answer by brainly

Answer 1

Answer:

• Atomic Number is  the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
• Mass Number is the total number of protons and neutrons in a nucleus.

Answer 2

Answer:

Atomic number : The number of protons present inside the nucleus of an atom is known as the atomic number (Z)

Mass number : The total number of protons and neutrons present inside the nucleus of an atom is called mass number