First slide

Electronic configuration and Atomic , physical properties

Question

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

Easy

A

As
B

Sb
C

N
D

P

Solution

Atomic radius ; N<P<As<Sb<Bi ;
Ionization enthalpy…N>P>As>Sb>Bi ;
Melting point…As>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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