Which of the following is an incorrect Lewis electron-dot structure? 1 2 3 لیا in 5 6 JA 1 H 1.0 ITIB IVB 19 20 21 22 4 K Ca Sc Ti 7 3 Li 6.9 11 Na 23.0 IIA 4 Be 9.0 12 Mg 132.9 87 Fr (223) V 39.1 40.1 45.0 47.9 50.9 37 38 Rb 85.5 55 Cs Ba La 138.9 39 Sr Y 87.6 88.9 56 57 137-3 88 89 Ra Ac (226) 43 44 Tc Ru (98) 101.1 72 73 74 75 Hf Ta W Re 181.0 183.9 186.2 107 178.5 104 105 106 Rf Db Sg (727) (261.1) (262.1) (2661) (2641) (277) Bh Hs CL_CI CI - 40 Zr 91.2 H_H VB 23 -0 VIB VIIB 24 25 Cr Mn 52.0 54.9 41 42 Nb Mo 92.9 95.0 26 Fe 76 Os 190.2 108 --- 27 28 Co Ni 58.9 58.7 45 Rh 102.9 IB 29 Cu 63.5 47 46 Pd Ag 106.4 107.9 112.4 77 Ir Pt Au 192.2 195.1 78 79 80 109 110 111 Mt Ds Uuu (2581) (271) (272) IIIA 13 Al IIB 27.0 30 31 Zn Ga 65.4 48 49 Hg 197.0 200.6 5 B 10.8 69.7 Cd In IVA VA VIA 7 ដ៏o ប៉ដ្ថ ន អ ន ៩ 6 с 12.0 14 Si 28.0 31.0 30.1 34 32 N 14.0 Ge 15 P 33 As 72.6 74.9 50 51 Sn Sb 114.8 118.7 121.8 81 82 83 TI Pb Bi 204.4 207.2 209.0 Se 79.0 VILA 9 F 19.0 17 CI 35.5 35 Br 79.9 52 53 Te I 127.6 125.9 85 Po At (209) (210) VIIIA 2 He 4.0 10 Ne 20.2 18 Ar 40.0 36 Kr 83.8 54 Xe 131.3 86 Rn (222)
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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