Q78 / 180 · AIIMS 2007 · Chemistry

X-rays are emitted during

  • A
    \(\alpha, n\) reaction
  • Correct answer
    B
    \(K\)-capture
  • C
    \(n, \alpha\) reaction
  • D
    \(\beta\)-emission.

Solution

In certain nucleus, the nucleus captures an electron from the \(K\)-shell (being nearest to the nucleus). The vacancy created is filled up with the electron from the higher shells thereby emitting X-rays. As a result of \(K\)-electron capture, a proton in the nucleus is converted into a neutron \(\left(P^{+}+e^{-} \rightarrow n\right)\).

Hence, the correct answer is option: 'B'.

Relevant Questions