Describe the difference between atomic number and atomic mass.
2007-02-21 11:39:11 · 3 answers · asked by anarchygirl 1 in Science & Mathematics ➔ Earth Sciences & Geology
Atomic number states the number of protons in the nucleus of an atom. Atomic mass, or atomic weight refers to the combined number of protons with the average of the number of nuetrons in the nucleus. The same atom usually has two or more allowed numbers of nuetrons that account for the fractional portion of the atomic weight. These differing numbers of nuetrons are called isotopes of the element.
2007-02-21 11:48:07 · answer #1 · answered by Amphibolite 7 · 0⤊ 0⤋
The Atomic Number is the number of protons in an atom
The Atomic Mass is the mass of neutrons and protons combined in an atom
2007-02-21 19:48:56 · answer #2 · answered by gumtrees 3 · 0⤊ 0⤋
Atomic number is the number of protons in the nucleus while atomic mass is protons, neutrons, electrons, etc.
2007-02-21 19:44:43 · answer #3 · answered by Mike1942f 7 · 0⤊ 0⤋