When a sulphur atom becomes a sulphide ion [AMU 1999]

1.	When a sulphur atom becomes a sulphide ion [AMU 1999]
A.	There is no change in the composition of atom
B.	It gains two electrons
C.	The mass number changes
D.	None of these
Answer» C. The mass number changes

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When a sulphur atom becomes a sulphide ion [AMU 1999]

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