""(98)Cf^(246) was formed along with a n...

`""_(98)Cf^(246)` was formed along with a neutron when an unknown radioactive substance was bombarded with `""_(6)C^(12)`. The unknown substance was

`""_(91)Pa^(234)`

`""_(90)^(Th^(234)`

`""_(92)U^(235)`

`""_(92)U^(238)`

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The correct Answer is:

Let the unknown substances is `""_(Z)^(A)Q`
`""_(Z)^(A)Q + ""_(6)^(12)C to ""_(98)^(246)Cf + ""_(0)^(1)n`
`:. Z + 6 = 98 implies Z = 92`
`A + 12 = 246 + 1 implies A = 235`
So, the unknown substance is `""_(92)^(235)U`.

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`""_(98)Cf^(246)` was formed along with a neutron when an unknown radioactive substance was bombarded with `""_(6)C^(12)`. The unknown substance was

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