Question:
With the help of given find out the mass number of oxygen and sulphur atom.
Answer:
Mass number = No. of proton + No. of neutron
No. of protons in oxygen atom = 8
No. of neutrons in oxygen atom = 8
Mass number of oxygen atom = 8 + 8 = 16
No. of proton in sulphur atom = 16
No. of neutrons in sulphur atom = 16
Mass number of sulphur atom = 32
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