Atomic Mass of Oxygen is .
A) 16
B) 17
C) 15
D) 14
Answer: The atomic mass of Oxygen is 16 amu. Therefore, the correct option is A.
Explanation:
Atomic Mass of any substance is the sum of the number of protons and the number of neutrons in the nucleus of that atom.
For Oxygen,
- Number of Protons = 8
- Number of Neutrons = 8
Thus,
Atomic Mass of Oxygen = 8 + 8 = 16
In absolute terms, the average atomic mass of oxygen is 15.99994 amu. It is calculated taking into account all the isotopes of oxygen.