Chemistry · May / June 2021 · Paper 12 · Question 27

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?

1. AA germanium atom has two more valence electrons than a selenium atom.
2. BGermanium forms a Ge3+ ion and selenium forms an Se3- ion.
3. CGermanium has more metallic character than selenium.
4. DGermanium has similar properties to tellurium, and selenium has similar properties to tin.

As printed in the paper