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Question 107

Spot the false periodic-trend claim: a note says first ionization energy falls steadily from left to right. Which general correction is appropriate?

  1. It is determined only by neutron count.
  2. It is exactly constant across every period.
  3. It generally decreases from left to right.
  4. It generally increases from left to right.Correct answer

Explanation

First ionization energy generally rises from left to right across a period because the outer electron is held more strongly overall. Giving it the same direction as atomic radius confuses two trends that usually move oppositely across a row.

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Question 107: Spot the false periodic-trend claim: a note says first… · The Periodic Table and Elements · Questena