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6 Radioactivity

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Question 77
F

An electron absorbs 5.0 × 10-19 J and moves from orbit P to orbit R. It then moves to orbit Q, emitting 2.0 × 10-19 J.

What happens when the electron returns from Q to P?

[1]
A

It emits 7.0×10−19 J7.0\times10^{-19}\ \mathrm{J}7.0×10−19 J.

B

It emits 3.0×10−19 J3.0\times10^{-19}\ \mathrm{J}3.0×10−19 J.

C

It absorbs 7.0×10−19 J7.0\times10^{-19}\ \mathrm{J}7.0×10−19 J.

D

It absorbs 3.0×10−19 J3.0\times10^{-19}\ \mathrm{J}3.0×10−19 J.

Markscheme

6 Radioactivity Questions

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

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