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1 mole of a diatomic element X2 contains...

1 mole of a diatomic element `X_2` contains 34 and 40 moles of electrons and neutrons respectively. The isotopic formula of the element is:

A

`""_(34)^(74)X`

B

`""_(17)^(37)X`

C

`""_(34)^(40)X`

D

`""_(20)^(40)X`

Text Solution

Verified by Experts

The correct Answer is:
B
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