atom have: 20 protons,20 electrons and20 neutrons
ion have: 20 protons 18 electrons( metals lose electrons) and20 neutrons
Number of protons in the nucleus is the atomic number.
Atomic number is same as the number of protons and number of electrons.
The number of protons is equal to the atomic number of a chemical element.
This particle is the proton which is equal to the atomic number.
Atomic Number is the amount of Protons (positively charged subatomic particles) contained in the nucleus of an atom.
Number of protons in the nucleus is the atomic number.
The two subatomic particles are protons and electrons. They match the atomic number on periodic table.
This particle is the proton.
Atomic number is same as the number of protons and number of electrons.
The proton
False; the atomic number is the total number if protons in the nucleus only.
The number of protons is equal to the atomic number of a chemical element.
This particle is the proton which is equal to the atomic number.
Atomic Number is the amount of Protons (positively charged subatomic particles) contained in the nucleus of an atom.
Calcium has 20 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a calcium atom = Mass number - 20
The number of protons as well as the number of electrons.
NUmber of protons = Number of electrons = Atomic number Number of neutrons = Mass number - Atomic number