Draw the lewis structures for each of the following...

Draw the Lewis structures for each of the following molecules. Identify those that do not obey the octet rule and state the type of exception from the octet rule. ( a) AlH3 b) NO2 c) PF5 d) NH3

Transcript

00:01 The first option is alh3.

00:06 So here the valence electron of aluminium is 3.

00:10 So the lowy structure will be like this.

00:15 Aluminium having 3 valence electron and it is bonded with 3 hydrogen atom.

00:27 But here the aluminum is bonded with only 6 electrons and it is less than 8 electrons.

00:34 Hence we can say that it is an incomplete.

00:38 Octet and the second one which is n -o -2 so nitrogen is the central atom and two oxygen valency of nitrogen is total 5 or we can discuss like put two electrons between the atom first so here we are putting two electrons between these atoms and next is complete the octet on outside atom so here outside atom is oxygen so we can complete the octet so there will be total 8 electron so here we completed the octet and next we can put the remaining electron on the central atom so here we have told that nitrogen is having total valency 5 electron so here only 4 so there will be 1 electron remaining so in the next step move the electron pair from the outer total atom so here to get stable structure so here this electron is moved to here so we will get a stable louis structure here will be long pairs and here will be double bond then nitrogen one odd electron then oxygen and long pair of electrons so here the n node 2 is an example for having an odd number of balance electron and that cannot form an octet around each atom so it is having odd number of valence electron and cannot form octet next is pc l5 sorry pf 5 so here the luis structure will be like this so there is total of 5 fluorine atom so it is making bond with fluorine like this and there will be long pair of electrons in fluorine atom...

Question

Draw the Lewis structures for each of the following molecules. Identify those that do not obey the octet rule and state the type of exception from the octet rule. ( a) AlH3 b) NO2 c) PF5 d) NH3

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