Question

define atomic number​

Answer 1

Answer:

The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons

E = please mark a s brain liest

Answer 2

Answer:

Atomic Number (Z)

Atomic Number of element is defined as the Number of the protons in nucleus. It is denoted by the Letter Z. Z = Number of protons present in nucleus. For example, The number of protons in hydrogen atom is 1,So Atomic Number of Hydrogen is 1.