wooBull wooBull
  • 09-11-2020
  • Chemistry
contestada

1)
Radioactive materials have unstable
A)
nuclei
B)
electrons.
Delectron clouds.
D)
area of atom outside of nucleus.

Respuesta :

sara2310
sara2310 sara2310
  • 09-11-2020
A: Nuclei
Because of extra protons and neutrons
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