22Ne nucleus, after absorbing energy, decays into two α-particles and an unknown nucleus. The unknown nucleus is
(A) nitrogen (B) carbon (C) boron (D) oxygen
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The correct answer is option B) carbon
α particle = He2+
Mass No = 4
So, New mass no. =22−8=14
Atomic No. =10−4=6
So, the new element is 6C14
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