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Date November 2021 Marks available 1 Reference code 21N.1.SL.TZ0.24
Level Standard level Paper Paper 1 Time zone 0 - no time zone
Command term Question number 24 Adapted from N/A

Question

A pure sample of radioactive nuclide X decays into a stable nuclide Y.

What is number of atoms of Ynumber of atoms of X after two half-lives?


A.  1

B.  2

C.  3

D.  4

Markscheme

C

Examiners report

[N/A]

Syllabus sections

Core » Topic 7: Atomic, nuclear and particle physics » 7.1 – Discrete energy and radioactivity
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