DP Chemistry (last assessment 2024)

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Question 21M.1.sl.TZ1.7

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.sl.TZ1.7
Level sl Paper 1 Time zone TZ1
Command term Deduce Question number 7 Adapted from N/A
7.
[Maximum mark: 1]
21M.1.sl.TZ1.7

Which species has the same electron configuration as argon?

A.  Br−

B.  Ca2+

C.  Al3+

D.  Si4+

[1]

Markscheme

B

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