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After the emission of one α-particle followed by one β-particle from the atom of (238,92) X, the number of neutrons in the atom will be

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After the emission of one α-particle followed by one β-particle from the atom of (238,92) X, the number of neutrons in the atom will be

(a) 144  (b) 143  (c) 148  (d) 146

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1 Answer

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Best answer

Correct option (b) 143 

Explanation :

Therefore, the number of neutrons in (234,91) Z

=234- 91=143

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