Nf3 and pf5 are stable molecules. write the electron-dot formulas for these molecules. on the basis of structural and bonding considerations, account for the facts that nf3 and pf5 are stable molecules but nf5 does not exist. this is the 1976 ap chemistry free response question, #9. couldn't quite figure out the answer. anyone know the answer?

Drive down any three characteristic of modern periodic table

In saturated organic compounds, all the bonds between carbon atoms are called?

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point