How many neutrons are present in the nucleus of \[Ra\] [CPMT 1980]

1.	How many neutrons are present in the nucleus of \[Ra\] [CPMT 1980]
A.	88
B.	226
C.	140
D.	138
Answer» E.

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How many neutrons are present in the nucleus of \[Ra\] [CPMT 1980]

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