Question

Comparative Electronegativities Choose the less electronegative element from each of the following pairs. (The four correct choices must be submitted simultaneously. No part marks.) PB Se Si AICI Submit Answer Tries 0/5 e Post Discussion Send Feedback

Answer 1

sis 4th Group element 1 P→ 5th Group element , both are si, p 38d posied elements. si - Atomic number = 14 P Atomic number= 15 In periods left to right electronegativity increases - Electro negativity: sicpl Tess electoo negative atom si B, AL B, Al are 3rd Group elements. In GrYoups top to bottom electronegativity defeases. B atomic number = 5 Al atomic number=13 Electronegativity By A) . Less electronegative atomi Al

se, ci se 6th Group element cl 7th Erroup element. se electronegativitys 24 al electronegativity = 3 .Least electronegative elementi se sb, p p and sb are 5th Group elements. P to sb electronegativity decreases. Least electronegative element = sb