beta decay

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7 Terms

1
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what happens during beta decay?

a neutron changed into a proton and an electron

  • electron emitted and proton remains in nuclei

2
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why is a new element formed?

because atomic number changes

3
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where does beta decay often happen and why?

in unstable nuclei that have too many neutrons

4
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a beta particle is a ___-____ electron

high-speed

5
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what is a beta particle‘s mass number

0

  • the electron has an insignificant mass compared with neutrons and protons

6
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the mass number of decaying nuclei….

remains the same

7
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what is an electron‘s atomic number?

-1

  • so the new nuclei will increase its atomic number by 1 to maintain overall atomic number before & after the decay