In simple terms, its protons plus its neutrons.
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Fluorine
We can find Atomic Mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
The mass of one mile of a compound is found by adding up the atomic masses of each of the component elements. A mole of Al2O3 has mass of 2 × 26.98 + 3 × 16.00 = 101.96g
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
Elements were originally placed in order of atomic massnow they are placed in order of atomic number
Generally the term "atomic mass" is used for isotopes. For elements is preferred now "atomic weight".
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
By Atomic Mass
The molar mass of a compound is the sum of atomic weights of the contained elements in the molecule.The expression atomic weight is correct for elements; for isotopes is correct atomic mass.
Gold is a meta element. Atomic Mass of it is 197.
Atomic Mass.
It is approximately equivalent to the number of protons and neutrons in the atom.
Mendeleev arranged elements in order of increasing mass. Later modern periodic table was discovered that contains elements arranged by atomic number.
The atomic mass of iodine is less than the atomic mass of all elements with greater atomic number.
Mendeleev arranged the elements in the periodic table according to their atomic masses.
Iron is a metal element. Atomic mass of it is 55.84.