Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

The electron arrangements for two elements are shown below. element L: $2,8,8,1$ element M: $2,8,4$ Which line gives the group number and period number for element L and for element M?

  • Aelement L: group I, period 4; element M: group IV, period 3
  • Belement L: group I, period 4; element M: group III, period 4
  • Celement L: group IV, period 1; element M: group III, period 4
  • Delement L: group IV, period 1; element M: group IV, period 3

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