It indicates the atomic number
An element can be identified by the number of protons in the nucleus of its atoms.
the number of protons
The number of protons in a nucleus is called the proton number, or atomic number. It is what defines which element we have.
Do you mean number of protons in a nucleus? The nucleus is part of an atom.
Because the atomic number indicates the number of protons per nucleus while the mass number is the sum of the number of protons and the number of neutrons per nucleus, and all atoms except hydrogen-1 have neutrons in their nuclei.
atomic number
atoms
Atomic Number
The total number of protons and neutrons in an atoms nucleus. The proton number on the other hand states just the number of protons in an atoms nucleus, hence the atomic number take away the proton number equals the number of neutrons in an atoms nucleus.
The number of protons in the atomic nucleus is equal to atomic number.
The atomic number is the number of protons in the nucleus of an atom, while the atomic mass is the total mass of the nucleus (both protons and neutrons)
Ununoctium