Question

whats bonded to the central atom are atoms :) right??
well what lone pairs?? the monded pairs??
I am a little confused with that and mutiple and double bonds..

Answer 1

Lone pairs are left over electrons usually on the central atom or peripheral atoms that does not participate directly in the sharing of bonds. Bonded pairs are the exact opposite of lone pairs in which they participate in the sharing of electrons between two atoms.

A single bond requires two electrons in order to form the bond, one from the central atom and one from the peripheral atom. A double bond would require a total of 4 electrons, half from the central atom and half from the peripheral atom.

Answer 2

so for H2O I have two lone pairs?

Answer 3

thats right valency of oxygen is 6e and H is 1e each, two bonds are formed between each H and O so a total of 4 electrons are used for H2O. Among the 4 electrons used, only 2 comes from the central O atom, since it has a valency of 6e minus 2e electron a total of 4e does not participate in bonds, thus 4 electrons = 2 lone pairs.

Answer 4

oh so I have 2 single bonds in this molecule and
I have 0 multiple bonds?

Answer 5

thats right no double or triple bonds exists in this molecule. Because hydrogen only has one available electron to donate for a bond, double bond needs at least 2 electrons and triple bonds need at least 3e.

Answer 6

oh ok thank you so much!

Answer 7

well nana chemistry is a broadsense is quite peculiar subject. lone pairs present on the central atom every atom have to complete its octet for its stability.lone pairs r the electrons left which doesn't take part in bonding. electrons taking part in bonding r called bonding electrons