Question

sources of atomic number
if anyone knows please tell me ​

Answer 1

Answer:

The atomic number or proton number(symbol Z) of a chemical element is thenumber of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge numberof the nucleus.

Answer 2

Answer:

The number of protons in the nucleus of an atom determines an element's atomic number. In other words, each element has a unique number that identifies how many protons are in one atom of that element. For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.