The electron emitted in beta radiation originates from

  • [IIT 2001]
  • A

    Inner orbits of atoms

  • B

    Free electrons existing in nuclei

  • C

    Decay of a neutron in a nucleus

  • D

    Photon escaping from the nucleus

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Which one of the following is a possible nuclear reaction

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A nucleus $_Z{X^A}$ emits $3 \alpha$ - particles and $5 \beta$ particle. The ratio of total neutrons and protons in the final nucleus is

What is $\alpha  -$ , $\beta -$ and $\gamma -$decay ? Write its general formula. 

In the nuclear decay given below 

$_z{X^A}{ \to _{z + 1}}{Y^A}{ \to _{z - 1}}{K^{A - 4}}{ \to _{z - 1}}{K^{A - 4}}$

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  • [AIPMT 2009]