Chemistry

We know that the periodic table arranged fragments depending on how many electrons are in its outer most shell.
E.g. Group 1 - has one electron
Etc.

We know that the metals have only a a couple of(prenominal) electrons in their outer most shell, and are quite riant to donate them to the non metals, so as to end up with a entire outer shell.

The non metals would need to accept some spare electrons from the metals to fill their outer shell.
This means we could divide the metals and the non metals into electron donors and electron acceptors.

Valency is the name given to the number of electrons that get donated or accepted.
If they get donated they have a positive valence.
E.g. Li= +1
Be= +2
B= +3
If electrons are accepted, we say they have a negative valency.
E.g. F= -1
O= -2
N = -3
Something like coulomb could be a donor or an acceptor, with a valency of 4. (usually accepts)
E.g. C= - or + 4

2h20
2 = full
2 = 2 subscript
+1 = 1 superscript
The usual thing that happens is that a positive valency chemical substance ( metals ) would donate their electrons to a negative valency chemical (non-metal)
E.g.




Li+1 ( lithium)+ F-1 (fluorine)= LiF (Lithium Fluoride)
Example.
2Li+1+O-2 = Li2O

Be + F = beryllium flouride (BeF2
Be + O = Beryllium Oxide
Li + Cl = Lithium Oxide
Be + Cl = Beryllium chloride (BeCl2)
Na + Cl = particleic number 11 chloride NaCl
Na + 0 = 2na+cl = Na2O = 2sodium 1oxygen

When a metal atom donates an electron, it becomes charged.
When an Atom gets charged, it results in a valency, and we now call the atom an Ion.
So any chemicals that bond together by donating or accepting electrons are really glued together referable to positive and negative charges.
Any new compound organize this way is called an Ionic Compound.If you want to get a full essay, order it on our website: Orderessay



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