If a heavy nucleus has $N / Z$ ratio higher than that required for stability, then
It emits $\beta^{-}$
It emits $\beta^{+}$
It emits $\alpha$ particle
It will undergo $K$ electron capture
${}^{238}U$ has $92$ protons and $238$ nucleons. It decays by emitting an Alpha particle and becomes
In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following would be emitted in the decay process
In the given reaction $_z{X^A}{ \to _{z + 1}}{Y^A}{ \to _{z - 1}}{K^{A - 4}}{ \to _{z - 1}}{K^{A - 4}}$ Radioactive radiations are emitted in the sequence
In which radioactive disintegration, neutron dissociates into proton and electron
Which of the following is a correct statement