O-LevelChemistryAtomic Structure5070/11 · Oct/Nov 2010 · Q61 Mark

Hydrogen can form both H⁺ ions and H¯ ions. Which one of the statements below is correct?

AAn H⁺ ion has more protons than an H¯ ion.

BAn H⁺ ion has no electrons.

CAn H¯ ion has one more electron than an H⁺ ion.

DAn H¯ ion is formed when a hydrogen atom loses an electron.

✓ Correct answer

B: An H⁺ ion has no electrons.

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2010 Paper 1 Variant 1, question 6.

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