Question

How do I draw lewis dot structures? (i.e. count for valence electrions, how to know when to use single vs. double vs. triple bonds, and an explanation of the octet rule)

Answer 1

The following step drawing a lewis dot structure: 1)count all the valence electron ex. lewis digram of H2O H2 = 1×2=2 O = 6×1 = 6    Total = 8e-    2) Determine the central atom ex. H-O-H   3) draw single bond to the centrall atom ex.like as H-O-H    4) put all remaining valence electron on atom as a lone pair ex.. 5) Turn lone pair into double or triple bond to gives every atom an octet . two dot called lone pair of electron .. Octate rule states that forming compound,atom gain ,lose or sharing electron to gives stable electron configuration characterised b8 valence electron .the rule is applied to the main group element of second period .ex.H, Be, C,N,O,F,etc 1) one line = single bond (H-H    = 2 electron 2) two line = double bond (O=O) with lone pair=4 electron 3 ) three line= triple bond ( N2 with triple bond= 6 electron..