Chemistry 5070 · O Level · Arrangement of elements

Arrangement of elements — practice question

Germanium is placed in Group IV of the Periodic Table. Its proton number is $32$. Selenium is placed in Group VI of the Periodic Table. Its proton number is $34$. From the positions of germanium and selenium in the Periodic Table, which prediction can be made?

  • AA germanium atom has two more valence electrons than a selenium atom.
  • BGermanium forms a $\text{Ge}^{3+}$ ion and selenium forms an $\text{Se}^{3-}$ ion.
  • CGermanium has more metallic character than selenium.
  • DGermanium has similar properties to tellurium, and selenium has similar properties to tin.

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