Question

what is atomic number??​

Answer 1

Answer:

The atomic number is the number of protons in the nucleus of an atom. ... The number of protons determines how many electrons surround the nucleus, and it is the arrangement of these electrons that determines most of the chemical behavior of an element.

Answer 2

Explanation:

$\color {pink}\boxed{\colorbox{black} { ♡answer♡}}$

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.