EVERYDAY SCIENCE

Detailed explanation-1: -Atomic number is always equal to the number of protons present in the nucleus. However, if the atom has no electrical charge present in it, then the atomic number is also equal to the number of electrons present since the number of protons and electrons will be the same.

Detailed explanation-2: -The chemistry of the atom is associated with its electron distribution. The number of electrons on a neutral atom is equal to the number of protons in the nucleus of the atom. This is known as the atomic number, Z.

Detailed explanation-3: -The number of protons in a nucleus is called the atomic number and always equals the number of electrons in orbit about that nucleus (in a nonionized atom). Thus, all atoms that have the same number of protons–the atomic number–are atoms of the same element.

Detailed explanation-4: -The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.

Detailed explanation-5: -Therefore, atomic number is equal to number of protons or number of electrons.