O-LevelChemistryAtomic Structure5070/11 · Oct/Nov 2014 · Q51 Mark

The table contains information on the structure of four particles. particle | proton number | number of protons | number of neutrons | number of electrons || Mg | 12 | 12 | W | 12 || Mg²⁺ | 12 | 12 | 12 | X || F | Y | 9 | 10 | 9 || F⁻ | 9 | 9 | 10 | Z What are the values of W, X, Y and Z in the table above?

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AW 10 X 12 Y 9 Z 10

BW 12 X 10 Y 9 Z 10

CW 12 X 10 Y 10 Z 9

DW 12 X 12 Y 10 Z 9

✓ Correct answer

B: W 12 X 10 Y 9 Z 10

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2014 Paper 1 Variant 1, question 5.

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