Which particle is emitted when an atom of 85Kr spontaneously decays? (1) an alpha particle (3) a neutron (2) a beta particle (4) a proton

asked Apr 20, 2016 69.5k views

3 votes

Which particle is emitted when an atom of 85Kr spontaneously decays?

(1) an alpha particle (3) a neutron
(2) a beta particle (4) a proton

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2 votes

The right answer is 2. A beta particle

Smelm answered Apr 26, 2016

by Smelm

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