DP Chemistry (last assessment 2024)

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Question 19M.3.sl.TZ2.c

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.sl.TZ2.c
Level sl Paper 3 Time zone TZ2
Command term Determine Question number c Adapted from N/A
c.
[Maximum mark: 1]
19M.3.sl.TZ2.c

This question is about nuclear reactions.

90Sr, a common product of fission, has a half-life of 28.8 years.

Determine the number of years for the activity of a sample of 90Sr to fall to one eighth ( 1 8 ) of its initial value.

[1]

Markscheme

86.4 «years»  [✔]

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