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Three isotopes of an element have mass n...

Three isotopes of an element have mass numbers ` (m), (m + 1)` and `(M + 2)` . If the mean mass number is ( M + 0. 5) then which of the following ratios may be accepted for ` M`, `(M + 1)` and `( M+2)` in the order ?

A

`1:1:1`

B

`4:1:1`

C

`3:2:1`

D

`2:1:1`

Text Solution

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The correct Answer is:
B
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