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Question
What do you understand by the term nucleus?
Solution
Nucleus: The central core of an atom is called nucleus. The nucleus contains protons and neutrons.
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RELATED QUESTIONS
An atomic nucleus A is composed of 84 protons and 128 neutrons.
- The nucleus A emits an alpha particle and is transformed into nucleus B. What is the composition of nucleus B?
- The nucleus B emits a beta particle is transformed into nucleus C. What is the composition of nucleus C?
- Does the composition of nucleus C change if it emits gamma radiations?
(i) Define nuclear fission.
(ii) Rewrite and complete the following nuclear reaction by filling in the atomic number of Ba and mass number of Kr.
`""_92^235U +""_0^1n → ""__^144 Ba +""_36^_ Kγ +3""_0^1 n +`Energy
What is nuclear fusion? Give one example and write its nuclear reaction.
Einstein’s theory of mass-energy equivalence is used in nuclear fission and fusion.
Match: I
| a. | BARC | Kalpakkam |
| b. | India’s first atomic power station | Apsara |
| c. | IGCAR | Mumbai |
| d. | First nuclear reactor in India | Tarapur |
Mark the correct choice as
- Assertion: A neutron impinging on U235, splits it to produce Barium and Krypton.
- Reason: U - 235 is a fissile material.
What is the average energy released from a single fission process?
Use the analogy to fill in the blank.
Nuclear Fusion : Extreme temperature, Nuclear Fission : ___________.
Use the analogy to fill in the blank.
Nuclear Fusion : Extreme temperature, Nuclear Fission : _____.
Use the analogy to fill in the blank.
Nuclear Fusion : Extreme temperature, Nuclear Fission : ______
