Question

What is radioactive elements?? plz follow me new here
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Answer 1

Answer:

THESE ARE THE ELEMENTS WHICH EMITS HARMFUL RADIOACTIVE RADIATION

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Answer 2

Answer:

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, or a gamma ray or electron in the case of internal conversion

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