Question

Atomic number of an element is decided by a number of?

Answer 1

Answer:

netron ,proton and electron

Answer 2

Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number. In contrast, the number of neutrons for a given element can vary.