Question 1
Arrange the following in order of increasing electronegativity: Cs, F, As, Cl.
◦ As < Cl < Cs < F
◦ Cl < As < F < Cs
◦ As < F < Cs < Cl
◦ Cl < Cs < F < As
◦ Cs < As < Cl < F
Question 2
As indicated by Lewis structures, which of the following molecules would probably be unstable?
◦ NH
3 ◦ N
2H
6 ◦ SF
4 ◦ CH
2F
2 ◦ SiH
4