Question

define the term atomic number write the atomic number of aluminum​

Answer 1

Answer:

Atomic Number Definition The total number of protons present in the nucleus of every atom of a chemical element represents the atomic number of that element. ... And so, has the same atomic number. But different elements have different atomic numbers. For example, each atom of oxygen has 8 protons in its nucleus.

atomic number of aluminium is 13

Answer 2

Answer:

atomic number

nounCHEMISTRY

the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table

atomic no. aluminium is 13