Why electron capture is common in case of heavy nuclei?

In electron capture (radioactive process):

What is meant by electron capture?

Elimination reactions (especially beta -elimination) are as common as the nucleophilic substitution reaction in case of alkyl halides. Specify the reagents used in both cases.

Elimination reactions (especially beta -elimination) are as common as the nucleophilic substitution reaction in case of alkyl halides. Specify the reagents used in both cases.

For the beta^+ (positron) emission from a nucleus, there is another competing process known as electron capture (electron from an inner orbit, say, the K emitted). e^+ + "_Z^AX rarr "_(Z-1)^AY + v . Show that if beta^+ emission is energetically allowed, electron capture is necessarily allowed but not vice-versa

Fill ups: A…………………is a material in which all the electrons are tightly bound to the nuclei of atoms.

Which of the following processes result in an increase in the atomic number of a nuclide? a) alpha -emission b) electron capture c) gamma -emission d) beta - emission

Why power factor correction is must in heavy machinery?

Why does common salt dissolve in water ?