O-LevelChemistryAtomic Structure5070/12 · May/June 2021 · Q271 Mark

Germanium is in Group IV of the Periodic Table. It has a proton number of 32. Selenium is in Group VI of the Periodic Table. It has a proton number of 34. Which prediction can be made, based on the positions of germanium and selenium in the Periodic Table?

Agermanium atom has two more valence electrons than a selenium atom.

BGermanium forms a Ge³+ ion and selenium forms an Se³- ion.

CGermanium has more metallic character than selenium.

DGermanium has similar properties to tellurium, and selenium has similar properties to tin.

✓ Correct answer

C: Germanium has more metallic character than selenium.

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 27.

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