First slide

Electronic configuration and Atomic , physical properties

Question

A, P, X, B and E are the elements belonging to 15^th group of Modern periodic table. The correct trend of densityin these elements is A > P > X > B > E. The element ‘P’ in the sequence is

Easy

A

Sb
B

Bi
C

As
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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