What is `beta`-particle?

What are beta particles?

What is alpha particle?

What is the difference between an electron and a beta -particle?

Explain,how radioactive nuclei can emit beta- particles even though nuclei do not contain these particles.Hence explain why the mass number of a radioactive nuclide does not charge during beta decay.

A radioactive source, in the form of a metallic sphere of radius 10^(-2)m emits beta -particles at the rate of 5xx10^(10) particles per second. The source is electrically insulated. How long will it take for its potential to be raised by 2V, assuming that 40% of the emitted beta -particles escape the source.

How many alpha - and beta - particles are emitted, when _(90)Th^(232) decays to _(89)Ac^(228) ?

How many alpha - and beta - particles are emitted, when _(92)U^(238) decays to _(90) Th^(230) ?

How many alpha - and beta - particles are emitted, when _(90)Th^(232) decays to _(82)Pb^(208) ?