What is the mass of an oxygen atom,O,in atomic mass units?
A)12 amu
B)16 amu
C)18 amu
D)32 amu

Name: What is the mass of an oxygen atom,O,in atomic mass units? A)12 amu B)16 amu C)18 amu D)32 amu
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Quizplus · Accepted Answer

The atomic mass unit (amu) is defined as 1/12th the mass of an atom of carbon-12. Oxygen has 8 protons and usually 8 neutrons, making its mass number 16. Therefore, the mass of an oxygen atom is 16 amu.

What Is the Mass of an Oxygen Atom,O,in Atomic Mass