Question

who makes atomic mass and atomic number of an atom​

Answer 1

Answer:

There are three subatomic particles of an atom which are known as electron proton and neutron.

There is also a nucleus in an atom.

sum of numbers of proton and neutron in the nucleus of an atom form the the atomic mass of an atom

Also number of protons present in the nucleus of an atom forms the atomic number of an atom

Answer 2

Answer:

Atomic Number

• The total number of protons in an atom makes the Atomic Number of an atom.

Atomic Mass

• The total number of neutrons and protons together make the Atomic Mass of an atom.