nsTeam1RO, nsTeam1RW, nsTeam1_talkRO, nsTeam1_talkRW
6,302
edits
Changes
Jump to navigation
Jump to search
Line 5:
Line 5: − +
links
*The atomic mass also takes into account the mass of the [[electron]]s circling the nucleus. While the electrons weigh only about 1/2000<sup>th</sup> as much as the protons, this makes a difference. Atomic mass is not the same as nuclear mass.
*The atomic mass also takes into account the mass of the [[electron]]s circling the nucleus. While the electrons weigh only about 1/2000<sup>th</sup> as much as the protons, this makes a difference. Atomic mass is not the same as nuclear mass.
An element's atomic mass is found below its symbol on the [[Periodic Table of the Elements|periodic table of the elements]].
An element's atomic mass is found below its symbol on the [[periodic table of the elements]].
The value of the amu is actually defined to give [[carbon]]-12 a mass of exactly 12. (Note that the atomic mass listed for carbon in the periodic table is 12.0107; this is because 1.07% of the carbon in nature is carbon-13.)
The value of the amu is actually defined to give [[carbon]]-12 a mass of exactly 12. (Note that the atomic mass listed for carbon in the periodic table is 12.0107; this is because 1.07% of the carbon in nature is carbon-13.)