2 Keynotes in Organic Chemistry ·价o the a& )of another moc 1.2 The url of eh ae Methame(CHa) 8 valence electrons H g。·4x一8=日--n Lewis ructure akue pair of electrons is represented by two dots aide(HCN) HC双RN=H-C=N 1.3 Formal charge Formal p Atom(s) N.p Group numbe 16 7 ofo