First slide
Electronic configuration and Atomic , physical properties

C, X, Z, B and D are the elements belonging to 15th group of Modern periodic table. The correct trend of electronegativity in these elements is C = X < Z < B < D. The element ‘B’ in the sequence is


Atomic radius ; N<P<As<Sb<Bi ;

Ionization enthalpy…N>P>As>Sb>Bi ;

Melting pointAs>Sb>Bi>P>N ;

Boiling point….N<P<As<Bi<Sb ;

Density……….N<P<As<Sb<Bi ;

Electronegativity……N>P>As>Sb=Bi ;

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