DP Chemistry (last assessment 2024)
Question 20N.3.sl.TZ0.c
| Date | November 2020 | Marks available | [Maximum mark: 1] | Reference code | 20N.3.sl.TZ0.c |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | Outline | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
20N.3.sl.TZ0.c
of the mass of a rock weighing is uranium(IV) oxide, . of the uranium atoms in the rock are uranium-238, .
Outline a health risk produced by exposure to radioactive decay.
[1]
Markscheme
Any one:
«genetic» mutations ✔
«could cause» cancer ✔
Accept specific named types of cancer.
cells «in body» altered ✔
cells «in body» cannot function ✔
damaged DNA/proteins/enzymes/organs/tissue ✔
«radiation» burns ✔
hair loss ✔
damage in foetuses ✔
damages/weakens immune system ✔
Examiners report
A well answered question.
