DP Chemistry (last assessment 2024)

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Question 17N.3.sl.TZ0.16

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Date November 2017 Marks available [Maximum mark: 2] Reference code 17N.3.sl.TZ0.16
Level sl Paper 3 Time zone TZ0
Command term Explain Question number 16 Adapted from N/A
16.
[Maximum mark: 2]
17N.3.sl.TZ0.16

Radioisotopes are used to diagnose and treat various diseases. Explain the low environmental impact of most medical nuclear waste.

[2]

Markscheme

Any two of:

emits weak ionising radiation

OR

low activity/radioactivity

can be stored until material becomes inactive AND then disposed with normal waste

«isotopes» have short lives

OR

exist for a short period of time

Award [1 max] for “low-level waste/LLW”.

[Max 2 Marks]

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