Question
Chemistry Question on Some basic concepts of chemistry
The electronegativities of N,C,Si and P are in the order
A
P < Si < C < N
B
Si < P < N < C
C
Si < P < C < N
D
P < Si < N < C
Answer
Si < P < C < N
Explanation
Solution
Electronegativity increases on moving left to right in a period and decreases for the period below it (∵n= increases )
∵(N and C) and (Si and P) respectively belongs to (n=2) and (n=3)
∴ Electronegativity of N> electronegativity of C and electronegativity of P> electronegativity of Si Hence, correct order is:
Si<P<C<N