NEET-XII-Physics

13: Nuclei

  • #6
    Write nuclear reaction equations for
    (i) α-decay of (ii) α-decay of
    (iii) β--decay of (iv) β--decay of
    (v) β+-decay of (vi) β+-decay of
    (vii) Electron capture of
    Ans : α is a nucleus of helium and β is an electron (e- for β- and e+ for β+). In every α-decay, there is a loss of 2 protons and 4 neutrons. In every β+-decay, there is a loss of 1 proton and a neutrino is emitted from the nucleus. In every β--decay, there is a gain of 1 proton and an antineutrino is emitted from the nucleus.

    For the given cases, the various nuclear reactions can be written as: