what is the atomic number of an atom?\nthe row of the periodic table to which it belongs\nthe number of…

what is the atomic number of an atom?\nthe row of the periodic table to which it belongs\nthe number of protons it contains\nthe number of naturally occurring isotopes it has\nthe number of neutrons it contains

what is the atomic number of an atom?\nthe row of the periodic table to which it belongs\nthe number of protons it contains\nthe number of naturally occurring isotopes it has\nthe number of neutrons it contains

Answer

Brief Explanations:

The atomic number of an atom is defined as the number of protons in its nucleus. The row in the periodic table is related to electron - shell energy levels, the number of isotopes is about different forms of the same element with different neutron numbers, and the number of neutrons is different from the atomic number.

Answer:

The number of protons it contains