atomic number
atomic weight
Bromine is a non meta element. Atomic mass of it is 80.
Hydrogen is a non metal element. Atomic mass of it is 1.0079.
Helium is a non metal element. Atomic mass of it is 4.00.
Barium is a non metal element. Atomic mass of it is 137.
Silicone is a non meta element. Atomic mass of it is 28.
atomic number atomic weight
Mass number is the sum of neutrons and protons. It is equals to total of their weights. As an example hidrogen-2 (deuterium) has a mass number of 2.
Bromine is a non meta element. Atomic mass of it is 80.
Hydrogen is a non metal element. Atomic mass of it is 1.0079.
Helium is a non metal element. Atomic mass of it is 4.00.
Nitrogen is a non meta element. Atomic mass of it is 14.
Barium is a non metal element. Atomic mass of it is 137.
Silicone is a non meta element. Atomic mass of it is 28.
Chlorine is a non metal element. Atomic mass of it is 35.45.
Fluorine is a non metal element. Atomic mass of it is 19.
Berylium is a non metal element. Atomic mass of it is 9.
Hydrogen is a non meta element. Atomic Mass of it is 2.