DP Physics (last assessment 2024)

Question 18M.2.HL.TZ2.9c.iii

Date	May 2018	Marks available	[Maximum mark: 1]	Reference code	18M.2.HL.TZ2.9c.iii
Level	HL	Paper	2	Time zone	TZ2
Command term	Calculate	Question number	c.iii	Adapted from	N/A

c.iii.

[Maximum mark: 1]

18M.2.HL.TZ2.9c.iii

(c.iii)

Calculate the electron’s orbital radius in (c)(ii).

[1]

Markscheme

« r = $\frac{{{{(6.63 \times {{10}^{ - 34}})}^2}}}{{4{\pi ^2} \times 8.99 \times {{10}^9} \times 9.11 \times {{10}^{ - 31}} \times {{(1.6 \times {{10}^{ - 19}})}^2}}}$ »

r = 5.3 × 10^–11 «m»

[1 mark]

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Additional higher level (AHL)

Additional higher level (AHL) » Topic 12: Quantum and nuclear physics » 12.1 – The interaction of matter with radiation

Additional higher level (AHL) » Topic 12: Quantum and nuclear physics

Question 18M.2.HL.TZ2.9c.iii

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