# How to learn the valency in chemistry?Tell me some trick please.

2
by mathsy
to make it simple first learn all the elements and if you learn them u can know the atomic number then u can caluculate the valency
isn't it
sorry wrong comment

2016-02-13T18:47:26+05:30
If you want to memorize the valencies of the elements :-

-> First, Learn the name of the elements from the periodic table by order.

-> If you do this you will get the atomic no. i.e. No. of protons. You will also get the No. of electrons. {No. of protons = No. of electrons}

-> Valency is the No. of valence electrons gained or lost by an element.

-> Rember the formula i.e. 2(n)^2. This is the formula from which we are able to know that how many electrons can have in an orbit/Shell.
For e.g.- K is the first orbit.
Therefore, 2(1)^2 = 2(1) = 2.
=> K shell can have max. two electrons.

-> By this we can get the No. of valence electrons and that's the valency. {Because we know atomic No. and the formula, we can find the No. of electrons present in the outermost orbit/shell}
thanks thats really easy ^.^
2016-02-13T23:31:07+05:30
If u want to learn valency then u should hav by hearted means learnt atomic no.'s then u can easily find their electronic configuration nd then their valencies._too easy way na
yes thanks^.^
ur wlcm