Question

Which of the following bond(s) is/are polar covalent?
Si and P
C and N
Ca and Br
Na and O

Answer 1

All of them are polar covalent

Answer 2

Silicon-Phosphorus, Na-O, and and Ca-Br are ionic, @Sheng

Answer 3

C and N has to be polar covalent. Both atoms are strongly electronegative, but N is only slightly more so, resulting in a slight negative charge towards N.

Answer 4

oh sorry only saw the polar part, Si-P and C-N are polar covalent

Answer 5

Is silicon not a metal? I thought metal-nonmetal bonds are all ionic...

Answer 6

i thought only metals and nonmetals are polar

Answer 7

silicon is a metalloid

Answer 8

polar is anything that has an electronegativity difference

Answer 9

doesnt matter if it's metal or non-metal, that's only generally speaking