1.

The ""_(92)^(238) U disintegrates to give 4 alpha and 6 beta- particles . The atomic number of daughter element obtained is 10 x. x is ___

Answer»


Solution :`""_(92) U^(238) to ""_(Z) X^(A) + 4 (""_(2) He^(4)) + 6 (""_(-1) beta^(0)), 238 = 16+ A + 0 implies A = 238 - 16 = 222`
`92 = 8-6 + Z , 92 = 2 + Z implies Z = 90`


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