1. Tardigrade
  2. Question
  3. Chemistry
  4. Considering the elements B , C , N , F and Si , the correct order of their non-metallic character is

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Q. Considering the elements $ B $ , $ C $ , $ N $ , $ F $ and $ Si $ , the correct order of their non-metallic character is

AMUAMU 2011Classification of Elements and Periodicity in Properties

Solution:

As the ionisation enthalpy decreases down the group, therefore the non-metallic characters also decreases. Similarly, as the ionisation enthalpy increases along a period, consequently the non-metallic character also increases. Thus, the correct order of their non-metallic character is
$F > N > C > B > Si$