In beta decay, an electron (or a positron) is emitted by a nucleus. Does the remaining atom get oppositely charged?

Assertion:In beta- decay, all the emitted electron do not have the same energy. Reason: beta- decay is not a two body decay process.

The electron emitted in beta radiation originates from

A: Electric force is the reason for electron to remain in a atom. R : According to Coulomb's law, the electron in a atom can remain stable in nucleus only if the centripetal force is equal to its centrifugal force.

An electron collides with a fixed hydrogen atom in its ground state. Hydrogen atom gets excited and the colliding electron loses all its kinetic energy. Consequently the hydrogen atom may emits a photon corresponding to the largest wavelength of the Balmer series. The K.E. of colliding electron will be..

A cubical region of space is filled with some uniform electric and magnetic fields. An electron enters the cube across one of its faces with velocity v and a positron enters via opposite face with velocity – v. At this instant,

Two objects of equal mass rest on the opposite pans of an arm balance. Does the scale remain balance when it is accelerated up or down in a life ?

For the b+ (positron) emission from a nucleus, there is another competing process known as electron capture (electron from an inner orbit, say, the K–shell, is captured by the nucleus and a neutrino is emitted). e + ""_(Z)^(A)X to ""_(Z - 1)^(A)Y + v Show that if beta+ emission is energetically allowed, electron capture is necessarily allowed but not vice–versa.