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The nuclei of which one of the following pairs of nuclei are isotones? (a) 34 Se 74 , 31 Ga 71 (b) 38 Sr 84 , 38 Sr 86 (c) 42 Mo 92 , 40 Zr 92 (d) 20 Ca 40 , 16 S 32



The nuclei of which one of the following pairs of nuclei are isotones?


(a)    34Se74, 31Ga71


(b)    38Sr84, 38Sr86


(c)    42Mo92, 40Zr92


(d)    20Ca40, 16S32


Grade:upto college level

1 Answers

Simran Bhatia
348 Points
9 years ago

(a)

Isotones means equal number of neutrons i.e.,

(A-Z) = 74 - 34 = 71 - 31 = 40.

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