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

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.HL.TZ2.c.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.c.iii

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

[1]

Markscheme

« r =  ( 6.63 × 10 − 34 ) 2 4 π 2 × 8.99 × 10 9 × 9.11 × 10 − 31 × ( 1.6 × 10 − 19 ) 2 »

r = 5.3 × 10–11 «m»

[1 mark]

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