Question

atomic number explain with example​

Answer 1

It is defined as the total number of protons present in the nucleus of an atom.

Example:-

Sodium (Na):-

No. of protons=11

Hence,it's atomic number is also 11

Answer 2

Answer:

Explanation:

Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.