Chemistry 0620 · IGCSE · Arrangement of elements

Arrangement of elements — practice question

The elements sodium through to argon make up Period 3 of the Periodic Table. Which row shows the pattern across Period 3 from left to right?

  • Anumber of outer-shell electrons decreases; metallic character decreases; group number decreases
  • Bnumber of outer-shell electrons decreases; metallic character increases; group number decreases
  • Cnumber of outer-shell electrons increases; metallic character decreases; group number increases
  • Dnumber of outer-shell electrons increases; metallic character increases; group number increases

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