Скачать или смотреть Ch:20, Sec B,Q1, Q2,Q3,Q4,Nuclear structure,Physics class 10,

ch:20,Nuclear structure,Section B,Q1, Q2,Q3,Q4, Physics class 10,‎@classictution#chapter20 question answer #sectionB structured question chapter 20
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physics class 10 chapter 20 question answer
physics class 10 chapter 20 exercise

define the term radioactivity
why some elements are radio active and some are not ?
what do you mean by the term stable nucleus
alpha decay from uranium 238
bete-decay from c_14
random nature of radioactive decay
gamma particles
beta particle
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