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Question

State the factors which influence or affect the ionization potential of elements in a periodic table.

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Answer

The factors which influence the ionization potential of an element are —

  1. Atomic size – As atomic size increases, the nuclear attraction on the outer electrons decreases and outer electron is loosely held. Hence, ionization potential decreases.
  2. Nuclear charge – As nuclear charge increases, the nuclear attraction on the outer most electron increases and the outer electron is more firmly held. Therefore, ionization potential increases.

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