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Wednesday, February 5, 2014

Chemistry

We know that the periodic table arranged fragments depending on how more electrons are in its outer most shell. E.g. Group 1 - has one electron Etc. We know that the metals have moreover a a couple of(prenominal) electrons in their outer most shell, and are quite riant to present them to the non metals, so as to end up with a entire outer shell. The non metals would film to accept some spare electrons from the metals to fill their outer shell. This performer we could divide the metals and the non metals into electron donors and electron acceptors. Valency is the name minded(p) to the number of electrons that get donated or accepted. If they get donated they have a irrefutable valence. E.g. Li= +1 Be= +2 B= +3 If electrons are accepted, we say they have a prejudicial valency. E.g. F= -1 O= -2 N = -3 Some topic 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 subsc ript +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 subatomic particle gets charged, it results in a valency, and we now call the atom an Ion. So any chemicals that bond together by donating or judge electrons are really glued together referable to positive and negative charges. Any new compound organize this itinerary is called an Ionic Compound.If you want to get a full essay, give it on our website: OrderCustomPaper.com

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