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6 Radioactivity

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Question 6

A radiation monitor follows a decay chain in a sample of air. At the start, the nucleus being monitored contains 86 protons and 136 neutrons. The chain then produces two alpha particles and one beta-minus particle.

Which pair describes the nucleus remaining at the end of the chain?

[1]
A

mass number 214214214; atomic number 838383

B

mass number 214214214; atomic number 818181

C

mass number 218218218; atomic number 858585

D

mass number 214214214; atomic number 828282

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6 Radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6 Radioactivity

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