2007-01-15 03:59:49 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Some people said it is also called atomic mass??!! avent got a clue!
2007-01-15 04:14:36 · update #1
Chemical mass is the weight of protons and neutrons. Electrons are not counted as their mass is so tiny in proportion. That is assuming that you are talking about Atomic Mass.
So for example, Carbon is given the atomic weight of 12. This is because it has 6 protons and 6 neutrons. It is also the weight in grams which provides 6X10(23) (six times ten to the power of twenty three) atoms. This is known as avogadros number
Hopes this helps
2007-01-15 04:07:47 · answer #1 · answered by boobboo77 2 · 0⤊ 0⤋
The definition of mass is the amount of matter. It is measured on a balance, comparing it to a known mass.
The molecular mass of a particular chemical would be determined by add up the mass of all the atoms in the molecule.
2007-01-15 04:04:33 · answer #2 · answered by science teacher 7 · 1⤊ 0⤋
Maybe you mean atomic weight or atomic mass?
The atomic mass of a chemical element is the mass of an atom at rest, most often expressed in unified atomic mass units. The atomic mass is often synonymous with relative atomic mass, average atomic mass and atomic weight; however, it is subtly different in that it can either be the abundance-weighted average of isotope masses of an element or the mass of a single isotope.
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2007-01-15 04:05:57 · answer #3 · answered by DanE 7 · 0⤊ 0⤋
Do you mean atomic mass?
If so, then it's the number that you get when you add together the number of protons and neutrons in an atom.
2007-01-15 04:12:08 · answer #4 · answered by Riyah 3 · 0⤊ 0⤋
mass that is chemical
2007-01-15 04:03:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
it is the amount of protons plus neutrons
2007-01-15 04:34:38 · answer #6 · answered by Chris F 2 · 0⤊ 0⤋
look in the back of you book for that.
2007-01-15 04:03:24 · answer #7 · answered by Juleette 6 · 0⤊ 1⤋