nadireverett5707 nadireverett5707
  • 19-09-2018
  • Chemistry
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What happens to the mass number of a nucleus that emits an alpha particle?

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znk
znk znk
  • 30-09-2018

The mass number decreases by four.

An α particle is the nucleus of a helium atom, ₂⁴He.

Thus, if a nucleus emits an alpha particle, its mass number decreases by four.

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