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CBSE Class 12-science Answered

In Beta Decay, How does a nucleus emit electron if it does not contain any?
Asked by | 13 Dec, 2009, 10:43: PM
answered-by-expert Expert Answer

Hi dear,

Beta decay is a radioactive decay in which a beta particle (electron or positron) is emitted. In case of electron emission, it is referred to as β minus, while in case of positron emission, it is called as β plus.

In β minus decay, the weak nuclear force converts a neutron into a proton while emitting an electron and an antineutrino.

In β plus decay, energy is used to convert a proton into a neutron, positron and a neutrino.

Hope this helped.

Regards.

Topperlearning.com

Answered by | 13 Dec, 2009, 11:10: PM
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