Radioactivity

Concept of neutrino was given by,

Is radioactive are three type.This statement is true or false?

What is group displacement law in radioactivity?

What is parent nuclei.

Pauli's Neutrino hypothesis is an explanantion to alpha decay.

In the process $\mathrm{K}-$capture mass number

Energy distribution of $\mathrm{\beta }-$rays is

During the emission of a beta particle, the _____ number remains the same.

In both $\beta -$decay processes, the mass number of a nucleus remains same whereas the atomic number $Z$ increases by one in ${\beta }^{-}$decay and decreases by one in ${\beta }^{+}$  decay. Explain, giving reason.

How can I write the electron capture equation?

When radioactive nucleus emits $\mathrm{\beta }-$particle its atomic number and mass number are respectively

When radioactive nucleus emits an $\mathrm{\alpha }-$particle then dauter nucleus reduces in atomic number and mass number by

What happens to the atomic number during K capture?

When an alpha particle is emitted from an unstable nucleus, the atomic mass number of the nucleus :

Man-made radioactivity is also known as

Artificial radioactivity was discovered in which year?

The energies of alpha particles and of gamma rays emitted in radioactive decay are discrete. This observation is evidence for

When an alpha particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

If the half-life of a radioactive substance is $33$ years $3$ months, what is the mean life? Round the answer to the nearest integer.