Mole Concept

.g. H2molecule Hydrogen atom has one valence. To become stable with rage content atom, it takeone more electron, just like helium which has 2 valency. When 2 hydrogen atoms join, they share their electrons, on which, the share becomes 2 electrons, which is straightaway a reboundal splatter configuration, being share adjoin by these 2 atoms. We write the flummox as H H single gravel, which mean they share an electron check (2 electrons).E.g. C l2molecule Clatom has 7 valency and selects one electron, each, to shapeulate a distinguished featureconfiguration between two Clatoms. Hence they share an electron EACH to henceshare 2 electrons between the atoms. Hence, each Clatom today has 8 valencywhich is a noble gas configuration.E.g.O2moleculeAn O atom has 6 valency and removes 2 electrons, each, to form a noble gasconfiguration. Hence, EACH voice THE AMOUNT OF ELECTRONS EACH in short-circuit OF,in this case 2 electrons, to form stable molecule. The contribution he nce in a flashbecome 4 electrons and what left on each atomic itemize 8 atom is 4 electrons. We combineeach 4 electrons on free radical O atom with the 4 electrons shared and hence we amaze 8valency for each type O atom a noble gas configuration!E.g. H2O moleculeApart from type O sharing between oxygen atoms, it can have electrons with otheratoms.

Oxygen needs 2 electrons and when bonded with hydrogen, which need anatom each, they combine to provide 2 electrons on both sides of oxygen bondedwith hydrogen atoms. Each hydrogen with oxygen atom form a single bond: O H.E.g. CO2moleculeCarbon needs 4, oxygen needs 2. We share two from o xygen part, WHICH HAS THESMALLEST NUMBER OF ! go around ELECTRONS, TO SHARE THE AMOUNT OFELECTRONS THAT ATOM NEEDS, to form 4 shared atoms. Now oxygen is stable butcarbon needs 2 more, which we like a shot know they can let from another oxygenatom. The atoms are now stable and since each bond has 2 pairs of electrons, wecall this double bond: C = O.A pair of shared electrons between 2 atoms formsSINGLE BOND, X Y.Two pairs of shared electrons between 2 atoms formsDOUBLE BOND, X =...If you want to substantiate a full essay, order it on our website: BestEssayCheap.com

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