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GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 21 of 21 · Chemistry (Science, Grade 12)

Nuclear Chemistry

8 topics
Board exam — Applied chemistry, 8 marks across 4 chapters

Chemistry of the nucleus rather than the electrons: the three radiations and the law that predicts the daughter, half-life, and the fission and fusion that release the binding energy holding a nucleus together.

Topics

What the syllabus defines for this chapter

1Radioactivity; alpha, beta and gamma radiation and their properties
2Group displacement law and the writing of nuclear equations
3Rate of radioactive decay and half-life; numerical problems
4Nuclear stability, mass defect and binding energy
5Nuclear fission and the chain reaction
6Nuclear fusion and why it is called a thermonuclear reaction
7Nuclear reactor: its parts and their functions
8Uses of radioisotopes in medicine, agriculture and dating; radiation hazards