The decay modes of ¹⁴ C and ¹⁴ O are · ABC26IN0745
Subject: Inorganic Chemistry · Chapter: Nuclear Chemistry · Topic: Radioactive Decay Kinetics · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Easy
The decay modes of ${ }^{14} \mathrm{C}$ and ${ }^{14} \mathrm{O}$ are
(a)$\beta^{-}$decay
(b)positron emission
(c)$\beta^{-}$decay and positron emission, respectively
(d)positron emission and $\beta^{-}$decay, respectively
Answer
Answer: C ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Two models agree after a crop recheck; owner approved 11 Nov 2026.
Explanation
¹⁴C is neutron-rich (N/Z = 8/6) and decays by β⁻ to ¹⁴N; ¹⁴O is proton-rich (N/Z = 6/8) and decays by positron emission to ¹⁴N.
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