What number indicates the number of protons in the nucleus of an atom?

Answer 1

The atomic number tells you the number of protons in an atom. The atomic number is right above the element symbol. Example: 36 83.80 In this example, 36 is the atomic number, so the number of protons is 36. Protons and electrons can be found by the atomic number.

Answer 2

Number of protons = Atomic number

Number of electrons in a neutral atom = Atomic number

Number of neutrons = Mass number (the mass number is the sum of protons and neutrons in an atom) minus Atomic number (equal to number of protons)

Answer 3

The atomic number is the number of protons that an atom has, and number of protons is the same as number of electrons, unless the atom is an ion, in which case there might be an excess or deficiency of electrons.

Answer 4

Depending upon what element the atom is part of, the number of protons will differ accordingly. In the Periodic Table of elements, the number of protons is also the atomic number. This number is also the same as the amount of electrons as to balance out the charge to neutral.

Answer 5

The atomic number of the element of which the atom is an example indicates the number of protons in the nucleus of an atom.

Answer 6

The sum of protons and neutrons in the atomic nucleus is called mass number.

Answer 7

Atomic Number