14. A characteristic of ionic solids is that they A) have high melting points
B) have low boiling points
C) conduct electricity
D) are non-crystalline

i wish i could but this one is weird give me abc and i can solve it.

i think its 100

i hope this !

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.