![Oxygen occurs in nature as a mixture of isotopes ^16O , ^17O and ^18O having atomic masses of 15.995 u, 16.999 u and 17.999 u and relative abundance of 99.763 Oxygen occurs in nature as a mixture of isotopes ^16O , ^17O and ^18O having atomic masses of 15.995 u, 16.999 u and 17.999 u and relative abundance of 99.763](https://haygot.s3.amazonaws.com/questions/1957284_1867240_ans_eaed20b2bd8f4d489199f513859c3568.jpeg)
Oxygen occurs in nature as a mixture of isotopes ^16O , ^17O and ^18O having atomic masses of 15.995 u, 16.999 u and 17.999 u and relative abundance of 99.763
![How to Calculate Average Atomic Mass From Percent Abundance Examples, Practice Problems, Shortcut - YouTube How to Calculate Average Atomic Mass From Percent Abundance Examples, Practice Problems, Shortcut - YouTube](https://i.ytimg.com/vi/ZBCB0NMCyQ0/maxresdefault.jpg)
How to Calculate Average Atomic Mass From Percent Abundance Examples, Practice Problems, Shortcut - YouTube
![SOLVED: In nature, gallium (Ga) is found as two isotopes. Calculate the atomic mass of this element. 69 31Ga (atomic mass 68.926 amu, abundance 60.11%) 71 31Ga (atomic mass 70.925 amu, abundance 39.89%) SOLVED: In nature, gallium (Ga) is found as two isotopes. Calculate the atomic mass of this element. 69 31Ga (atomic mass 68.926 amu, abundance 60.11%) 71 31Ga (atomic mass 70.925 amu, abundance 39.89%)](https://cdn.numerade.com/ask_previews/b05ca644-c215-4bdf-8004-254e1237a36f_large.jpg)