Argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40. Based on argon's reported atomic mass, which isotope do you think is the most abundant in nature?
1 Answer
Feb 10, 2016
Argon-40
Explanation:
The mass of Argon on the periodic table is 39.948.
The periodic table's atomic mass is the AVERAGE weight of ALL its isotopes.
If one isotope is MORE abundant than the others, the average will be closest to the mass of that isotope.
So, the periodic table's 39.948 is closest to Argon-40
