Classification
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Seeing the four blocks

Seeing the four blocks

Simplified Periodic Table showing s-block on the left, d-block in the centre, p-block on the right and f-block as two detached rows below, with groups, periods and helium labelled The Periodic Table is arranged by increasing proton number, and its large regions are called blocks. The four blocks are sss, ppp, ddd and fff, and they are linked to electron structure.

Classification Lesson

  1. A Level
  2. /Chemistry
  3. /Classification