A-LevelChemistryAtomic structure9701/12 · Oct/Nov 2021 · Q31 Mark

Technetium (Tc) is a second row transition element that does not occur naturally on Earth. One of its isotopes has 56 neutrons. What is the nucleon number of this isotope?

A43

B56

C99

D112

✓ Correct answer

C: 99

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Topic: Atomic structure, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2021 Paper 1 Variant 2, question 3.

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