Ne-22 nucleus, after absorbing energy, decays into two α-particles and an unknown nucleus. The unknown nucleus is

Q.  ₁₀Ne²² nucleus, after absorbing energy, decays into two α-particles and an unknown nucleus. The unknown nucleus is

(a) Carbon

(b) Nitrogen

(c) Boron

(d) oxygen

Ans: (a)

Sol: ₁₀Ne²²  →2×₂He⁴ + _ZX^A

22 = 8 + A ⇒ A = 14

10 = 4 + Z ⇒ Z = 6

Hence , new element is ₆C¹⁴