Question

what do you mean by atomic number

Answer 1

Atomic no. refers to the protons present in the nucleus of an atom.

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Answer 2

hey mate :-)

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. It is know an as a atomic number .

Neutral atoms of an element contain an equal number of protons and electrons. The number of protons determines an element's atomic number (Z) and distinguishes one element from another. For example, carbon's atomic number (Z) is 6 because it has 6 protons.

Normal atoms have the same number of electrons as protons. The number of electrons is what makes each element behave a certain way in chemical reactions. So the atomic number, which is the number of protons and thus of electrons, is what makes one element different from another.