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Medical uses of Radioisotopes SAQ answers

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  • October 2, 2024
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ANSWERS TO SAQS
Subject: Physics / Medicine
Unit: Medical Uses of Radioisotopes
Topic: Medical Uses of Radioisotopes
Level: 3

SAQ 1:

1. Where in an atom would you find protons and electrons?

2. What is the mass of an electron compared to that of a proton?

Answers:

1. Protons are located in the nucleus of an atom, while electrons are
found orbiting the nucleus.

2. Electrons are approximately 1:1800 the mass of a proton.




© DistanceLearningCentre.com, 2022 1

, Subject: Physics / Medicine
Unit: Medical Uses of Radioisotopes
Topic: Medical Uses of Radioisotopes
Level: 3
ANSWERS TO SAQs



SAQ 2:

1. How many neutrons are in the following nuclei?
14
a) 6C
23
b) 11Na

14
c) 7N

235
d) 92U

2. Give the nuclear equation symbol for oxygen (O) which has 8
protons and 8 neutrons, and for fluorine (F) which has 9 protons
and 10 neutrons.

Answers:

1.
a) 14 – 6 = 8
b) 23 – 11 = 12
c) 14 – 7 = 7
d) 235 – 92 = 143
16
2. Oxygen: 8O
19
Fluorine: 9F




© DistanceLearningCentre.com, 2022 2

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