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Question 18M.2.SL.TZ2.6b.i

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.SL.TZ2.6b.i
Level SL Paper 2 Time zone TZ2
Command term State Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
18M.2.SL.TZ2.6b.i

Rhodium-106 ( 45 106 Rh ) decays into palladium-106 ( 46 106 Pd ) by beta minus (β–) decay.

The binding energy per nucleon of rhodium is 8.521 MeV and that of palladium is 8.550 MeV.

(b.i)

State what is meant by the binding energy of a nucleus.

[1]

Markscheme

the energy needed to separate the nucleons of a nucleus

OR

energy released when a nucleus is formed from its nucleons

 

Allow neutrons AND protons for nucleons

Don’t allow constituent parts

[1 mark]

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