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Question 18N.2.HL.TZ0.d.i

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.2.HL.TZ0.d.i
Level HL Paper 2 Time zone TZ0
Command term State Question number d.i Adapted from N/A
d.i.
[Maximum mark: 2]
18N.2.HL.TZ0.d.i

15 32 P is formed when a nucleus of deuterium ( 1 2 H ) collides with a nucleus of 15 31 P . The radius of a deuterium nucleus is 1.5 fm.

State what is meant by decay constant.

[2]

Markscheme

probability of decay of a nucleus ✔

OR

the fraction of the number of nuclei that decay

in one/the next second

OR

per unit time ✔

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