I have a science assignment and i have no idea how to work out the atomic weight. plz help, thanx!
2007-03-15 18:07:25 · 6 answers · asked by invisible_me123 1 in Science & Mathematics ➔ Chemistry
The atomic weight of magnesium (Mg) = 24.31 grams/mole.
Magnesium is element #12. Atomic mass is the same as atomic weight.
For more information, see the periodic table of the elements a:
http://images.google.com/imgres?imgurl=http://www.radiochemistry.org/periodictable/periodic_table.jpg&imgrefurl=http://www.radiochemistry.org/periodictable/download_table.html&h=998&w=1562&sz=261&hl=en&start=16&tbnid=6-kreX2bkywtJM:&tbnh=96&tbnw=150&prev=/images%3Fq%3Dperiodic%2Btable%26svnum%3D10%26hl%3Den%26safe%3Doff%26sa%3DN
Don't ever try to estimate atomic weights by calculation. Always go to a reference table.
2007-03-15 18:19:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Magnesium~atomic # 12, symbol Mg, atomic weight~24.312
Look under 'elements' page in the dictionary.
2007-03-16 01:25:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Search periodic table. The atomic weight is under the symbol for the element.
24.305 amu
http://chemistry.about.com/library/blmg.htm
2007-03-16 01:11:15 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋
the atomic weight for Mg is 24.31
a good science website that i use is http://www.chemicalelements.com/
check it out and good luck!
2007-03-16 01:13:49 · answer #4 · answered by awe 2 · 0⤊ 0⤋
go to
2007-03-16 01:20:31 · answer #5 · answered by Tyler T 2 · 0⤊ 0⤋
www.webelements.com
24.30 g/mol
2007-03-16 01:12:39 · answer #6 · answered by Jon R 2 · 0⤊ 0⤋