00:01
Class of chemical bonds where the valent electrons are shared between atoms.
00:03
These are typically non -metals.
00:04
Here we're drawing out some lower structures, so we need to concern ourselves with the valent electron count on each atom as well as the bonding types.
00:11
So whether we have single, double or triple bonds.
00:14
Here we're looking at cl2pn3.
00:18
So just to be clear, the three is outside the brackets there.
00:23
So we can start off with the structure.
00:24
So it is cyclical.
00:25
So we have phosphorus, nitrogen, phosphorus, nitrogen, phosphorus, nitrogen, and then bound to the first phosphorus we drew, where this phosphorus has two chlorines, as well as the other two.
00:46
So that is using all of phosphoress valence electrons, where it's five, so we're using three in a single bond and two in one double bond.
00:55
So the nitrogen's need a lone pairie, and the chlorines need three lone pairs each because they're group seven.
01:02
So we have one electron in the bonding pair and six electrons in lone pairs...