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Q: What is the atomic mass of oxygen (expressed in ‘u’)?
  • A. 24
  • B. 8
  • C. 16
  • D. 32
Correct Answer: Option C - The atomic number of oxygen is 8 having atomic mass of 16.
C. The atomic number of oxygen is 8 having atomic mass of 16.

Explanations:

The atomic number of oxygen is 8 having atomic mass of 16.