ddesravines ddesravines

03-02-2017
Chemistry

contestada

When a radioactive atom emits an alpha particle, the original atom's atomic number decreases by four.

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yashddsy26 yashddsy26

03-02-2017

Ya it is true, alpha particle is actually helium atom with no electrons !
He2+ and it has mass of 4 u ....So that is correct !

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