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Science TNSB Mentoring
Class 10 Crash course
Nuclear physics
Type of rays and energy released
7.
Nuclear radioactivity
Question:
2
m.
Select the best answer for the given question from the options:
1
.
The atomic number of natural radioactive element is __________.
greater than \(82\)
lesser than \(82\)
not defined
at least \(92\)
2
.
When a radioactive nucleus disintegrates by emitting beta particle, its atomic number __________.
increases by two
decreases by one
increases by one
decreases by two
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