atomic mass
How do you find average atomic mass?The average mass of an atom is found by averaging over the natural abundances of its isotopes.
Example: Lithium
6Li 6.015 amu 7.42%
7Li 7.016 amu 92.58%
Avg. mass = 6.015 amu x 0.0742
+ 7.016 amu x 0.9258
= 6.941 amu
Example: Lithium
6Li 6.015 amu 7.42%
7Li 7.016 amu 92.58%
Avg. mass = 6.015 amu x 0.0742
+ 7.016 amu x 0.9258
= 6.941 amu
atomic mass of elements below:
Helium-4.002602
Neon- 20.1797
Argon- 39.948
Krypton- 83.80
Xenon- 131.29
Radon- (222)
Neon- 20.1797
Argon- 39.948
Krypton- 83.80
Xenon- 131.29
Radon- (222)