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Lubov Fominskaja [6]
3 years ago
11

A half-life of a radioactive substance is the amount of time needed for one half of _____ to decay into a stable isotope.

Biology
2 answers:
Elina [12.6K]3 years ago
5 0

nuclie in a sample is the answer

n200080 [17]3 years ago
4 0
<span>A half-life of a radioactive substance is the amount of time needed for one hald of the nuclie in a sample to decay into a stable isotope.Many protons and neutrons disturb the balance of binding energy from a strong nuclear forces resulting for the nucleus to be unstable. To be in a balance state, the unstable nucleus will give off a proton or neutron through radioactive decay.</span>
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