1.

Indenify X in the following nuclear reactions (in the first reaction, n represents a neutron) : (a) `_(1)H^(1) + _(4)Be^(9) rarr X + _(o)n^(1)`, (b) `_(6)C^(12) + _(1)H^(1) rarr X `, (c ) `_(7)N^(15) + _(1)H^(1) rarr _(2)He^(4) + X`

Answer» Correct Answer - (a) `_(5)B^(9)`, (b) `_(7)N^(13)`, (c ) `_(6)C^(12)`
Using the law of conservation of mass number and charge number,
(a) Let `._(Z)X^(A)`
As `1+9 = A + a :.` As `A = 9`
As `1+4 = Z + 0 :. Z = 5`
Hence, `._(Z)X^(A)` is `._(5)5^(9)` is `._(5)B^(9)`
(b) Let `._(Z)X^(A)`
(b) Let `._(Z)X^(A)`
As `12+1 = A :. A = 13`
As `6+1 = Z :. Z = 7`
Hence, `._(Z)X^(A) ` is `._(7)N^(13)`
(c) Let `._(Z)X^(A)`
As `15+1 = 4 + A :. A = 12`
As `7+1 = 2 + Z :. Z = 6`
Hence `._(Z)X^(A)` is `._(6)C^(12)`


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