Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Although iodine, I, has a smaller relative atomic mass than tellurium, Te, it is listed after tellurium in the Periodic Table. Which statement accounts for iodine being positioned after tellurium in the Periodic Table?

  • AIodine has fewer neutrons than tellurium.
  • BIodine has fewer protons than tellurium.
  • CIodine has more neutrons than tellurium.
  • DIodine has more protons than tellurium.

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