δ+ delocalised electrons en we d bet rge ion cha act ely attr posit op s ion charge carriers in metals 120° 3 2 ° 3 shared pair of electrons non bonding pair att op ractio p n o s ite betw l y cha een r g edi o N2 has a triple covalent bond ral d e rah tet ion ic b on d ns le ang nd bo CH 4 of 3 trig bon onal d a pla ng nar le of e p sha ole dip CuO charge carriers in metals ble a e all 2 fC O wn a r d be o e t ire abl o a w int ion ic s oli d sha pe o be e to abl ped sha NH 3 mo ele st EN me nt m le cti du il ne ar flu o rin e 12 0° f ro pai red s sha ctron ele δ+ ° 09 1 x pro d mi yra al p on trig trigonal planar ap of n o i rat a p se arge ch delocalised electrons Na Cl on b n no pai r air p g din ine iod gra p h ite me t a llic s oli d covalent network solid mo t n ale v o c id sol silicon dioxide lon e cop per ar l u lec r ola np no