ddesravines
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 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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