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प्रश्न
Under which conditions does the nucleus of an atom tend to radioactive?
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उत्तर
The nucleus of an atom tends to be radioactive when the number of neutrons in the nucleus exceeds the number of protons inside it.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
What will happen to the beam when it passes through the electric field?
A nucleus of an element X which has the symbol `""_84^202` X emits an alpha particle and then a beta particle. The final nucleus is `""_"b"^"a"` Y Find a and b.
Define bound electrons.
What are ‘Becquerel rays’?
What is meant by Radioactivity?
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
From α, β and γ-rays, name the one which is not affected by electric or magnetic field?
Heavy radioactive elements eventually turn into ______.
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
A radioactive material decays by simultaneous emissions of two particles with half-lives of 1400 years and 700 years respectively. What will be the time after which one-third of the material remains? (Take In3 = 1.1)
