Question

the atomic mass of oxigen is
​

Answer 1

Explanation:

Atomic mass of oxygen is 15.999u

atomic number is 8

Answer 2

Answer:

Atomic mass of oxygen is 16

Explanation:

Atomic mass of oxygen is 16.

The average atomic mass of oxygen is 15.9994 atomic mass units. However, this atomic mass is the average atomic mass of all the isotopes in nature. That being said, the most common isotope is the first one. So, when most of us refer to oxygen it is the oxygen with 8 neutrons.

Hope it helps!!!!!!!!!!!!!!! mark me as Brainliest!!!!!!!!!!!!!!