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100 lessons,
4h 52m
What is Radioactive decay?
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In this video get to know what is Radioactive decay and who discovered it first.

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Daily Trivia

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please make daily trivia in hindi also .it give more helpful for me
sara wikipedia se hi toh copy kiya hai ......kuch toh apni language ka bhi use karo..
mam ur videos are really interesting and it possible to make videos on India's nuclear missiles and Indian army
thanks mam please make videos on current issue also
very helpful lesson i request u to make video on pesticide residue in food also
please explain ITCZ (Inter Tropical Convergence Zone) though your vedios
  1. What is Radioactive Decay?

  2. Radioactive decay is the process by which an unstablee atomic nucleus loses energy by emitting radiation.

  3. Radioactivity was discovered in 1896 by the French scientist Henri Becquerel, while working with photophorescent materials

  4. According to quantum theory, it is impossible to predict when a particular atom will decay, regardless of how long the atom has existed. However, for a collection of atoms, its expected decay rate is characterized in terms of their measured decay constants or half-lives. 2 25 2 2 lo 2skT)3/2 Ve G,1%.ha) (n 2)

  5. 210P0 The early researchers also discovered that many other chemical elements, besides uranium, have radioactive isotopes. 210 Po

  6. Marie and Pierre Curie's study of radioactivity is an important factor in science and medicine. After their research on Becquerel's rays led them to the discovery of both radium and polonium, they coined the term Radioactivity'.

  7. Nuclear Fission Energy Neutron Chain Reaction Neutron Fissionable Nucleus Neutron