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NEETChemistryClassification of Elements and Periodicity in Properties

In the given graph, a periodic property (( R ) ) is plotted against atomic numbers ( Z ) of the elements. Which property is shown in the graph and how is it correlated with reactivity of the elements?

Options

  1. AIonisation enthalpy in a group decrease reactivity decreases from ( a e ).
  2. BIonisation enthalpy in a group decreases reactivity increases from ( a e ).
  3. CAtomic radius in a group decrease reactivity decreases from ( a e ).
  4. DMetallic character in a group decrease reactivity increases from ( a e ).

Correct answer

B. Ionisation enthalpy in a group decreases reactivity increases from ( a e ).

Step-by-step solution

I.E. in a group decreases and reactivity increases.

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