Ok Well I have a periodic table of elements but I'm confused about 1 thing. How do you find atomic mass?
2006-09-21 11:28:11 · 5 answers · asked by melmel_girl_11 2 in Science & Mathematics ➔ Chemistry
Atomic mass is the number below the symbol that goes out several decimal places.
2006-09-21 11:29:58 · answer #1 · answered by FlashGordon 3 · 0⤊ 1⤋
The atomic mass is usually located under the symbol. For example, the atomic mass of Oxygen (O) is 15.99g/mole.
2006-09-21 11:30:25 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Add the number of neutrons and protons.
Neutrons and protons are the heaviest particles (found in the nucleus) of an atom.
The atomic number gives the number of protons (and electrons, but electrons have virtually no mass).
2006-09-21 12:00:04 · answer #3 · answered by Katt Attack 3 · 0⤊ 1⤋
it should be on ur periodic table and if its not then thats diff from mine and if it is, its the number thats ususlly maybe underneathe the symbol. it may have a decimal point
2006-09-21 11:33:18 · answer #4 · answered by JesusC<3 3 · 0⤊ 1⤋
http://periodic.lanl.gov/use.html
2006-09-21 11:57:09 · answer #5 · answered by gazongas 2 · 0⤊ 1⤋