# Elements chimiques : nom Z groupe periode bloc M (g/mol) electronegativite(Allred Rochow) electronegativite(Pauling) Energie d'ionisation (eV) H 1 1 1 s 1.01 2.2 2.2 13.6 $1s^1$ He 2 18 1 p 4.00 x x 24.59 $1s^2$ Li 3 1 2 s 6.94 0.97 0.98 5.39 $2s^1$ Be 4 2 2 s 9.01 1.47 1.57 9.32 $2s^2$ B 5 13 2 p 10.81 2.01 2.04 8.30 $2s^2p^1$ C 6 14 2 p 12.01 2.5 2.55 11.26 $2s^2p^2$ N 7 15 2 p 14.01 3.07 3.04 14.53 $2s^2p^3$ O 8 16 2 p 16.00 3.5 3.44 13.62 $2s^2p^4$ F 9 17 2 p 19.00 4.1 3.98 17.42 $2s^2p^5$ Ne 10 18 2 p 20.18 x x 21.56 $2s^2p^6$ Na 11 1 3 s 22.99 1.01 0.93 5.14 $3s^1$ Mg 12 2 3 s 24.30 1.23 1.31 7.65 $3s^2$ Al 13 13 3 p 10.81 1.47 1.61 5.99 $3s^23p^1$ Si 14 14 3 p 28.09 1.74 1.90 8.15 $3s^23p^2$ P 15 15 3 p 30.97 2.06 2.19 10.49 $3s^23p^3$ S 16 16 3 p 32.07 2.44 2.58 10.36 $3s^23p^4$ Cl 17 17 3 p 35.45 2.83 3.16 12.97 $3s^23p^5$ Ar 18 18 3 p 39.95 x x 15.76 $3s^23p^6$ K 19 1 4 s 39.1 0.91 0.82 4.34 $4s^1$ Ca 20 2 4 s 40.08 1.04 1.00 6.11 $4s^2$ Sc 21 3 4 d 44.96 1.20 1.36 6.54 $3d^14s^2$ Ti 22 4 4 d 47.88 1.32 1.54 6.82 $3d^24s^2$ V 23 5 4 d 50.94 1.45 1.63 6.74 $3d^34s^2$ Cr 24 6 4 d 52.00 1.56 1.66 6.77 $3d^54s^1$ Mn 25 7 4 d 54.94 1.6 1.55 7.44 $3d^54s^2$ Fe 26 8 4 d 55.85 1.64 1.83 7.87 $3d^64s^2$ Co 27 9 4 d 58.93 1.7 1.88 7.86 $3d^74s^2$ Ni 28 10 4 d 58.69 1.75 1.91 7.64 $3d^84s^2$ Cu 29 11 4 d 63.55 1.75 1.90 7.73 $3d^{10}4s^1$ Zn 30 12 4 d 65.39 1.66 1.81 9.39 $3d^{10}4s^2$ Ga 31 13 4 p 69.72 1.82 2.01 6.00 $...4p^1$ Ge 32 14 4 p 72.61 2.02 2.18 7.90 $...4p^2$ As 33 15 4 p 74.92 2.2 2.55 9.81 $...4p^3$ Se 34 16 4 p 78.96 2.48 2.55 9.75 $...4p^4$ Br 35 17 4 p 79.90 2.74 2.96 11.81 $...4p^5$ Kr 36 18 4 p 83.8 x 2.9 14.00 $...4p^6$ Rb 37 1 5 s 85.47 0.89 0.82 4.19 $5s^1$ Sr 38 2 5 s 87.62 0.97 0.95 5.70 $5s^2$ Y 39 3 5 d 88.91 1.11 1.22 6.22 $4d^15s^2$ Zr 40 4 5 d 91.22 1.22 1.33 6.84 $4d^25s^2$ Nb 41 5 5 d 92.91 1.23 1.6 6.88 $4d^45s^1$ Mo 42 6 5 d 95.94 1.3 2.16 7.10 $4d^55s^1$ Tc 43 7 5 d 98.91 1.36 1.9 7.28 $4d^55s^2$ Ru 44 8 5 d 101.1 1.42 2.2 7.37 $4d^75s^1$ Rh 45 9 5 d 102.9 1.45 2.28 7.46 $4d^85s^1$ Pd 46 10 5 d 106.4 1.35 2.20 8.34 $4d^{10}$ Ag 47 11 5 d 107.8 1.42 1.93 7.58 $4d^{10}5s^1$ Cd 48 12 5 d 112.4 1.46 1.69 8.99 $4d^{10}5s^2$ In 49 13 5 p 114.8 1.49 1.78 5.79 $...5p^1$ Sn 50 14 5 p 118.7 1.72 1.96 7.34 $...5p^2$ Sb 51 15 5 p 121.8 1.82 2.05 8.64 $...5p^3$ Te 52 16 5 p 127.6 2.01 2.1 9.01 $...5p^4$ I 53 17 5 p 126.9 2.21 2.66 10.45 $...5p^5$ Xe 54 18 5 p 131.3 x 2.6 12.13 $...5p^6$ Cs 55 1 6 s 132.9 0.86 0.79 3.89 x Ba 56 2 6 s 137.3 0.97 .89 5.21 x Hf 72 4 6 d 178.5 1.23 1.3 6.78 x Ta 73 5 6 d 180.9 1.33 1.5 7.89 x W 74 6 6 d 183.8 1.4 2.36 7.98 x Re 75 7 6 d 186.2 1.46 1.9 7.88 x Os 76 8 6 d 190.2 1.52 2.2 8.7 x Ir 77 9 6 d 192.2 1.55 2.2 9.1 x Pt 78 10 6 d 195.1 1.44 2.28 9.0 x Au 79 11 6 d 197.0 1.42 2.54 9.23 x Hg 80 12 6 d 200.6 1.44 2.00 10.44 x Tl 81 13 6 p 204.4 1.44 2.04 6.11 x Pb 82 14 6 p 207.2 1.55 2.33 7.42 x Bi 83 15 6 p 209.0 1.67 2.02 7.29 x Po 84 16 6 p 210.0 1.76 2.0 8.42 x At 85 17 6 p 210.0 1.96 2.2 x x Rn 86 18 6 p 222.0 x x 10.75 x Fr 87 1 7 s 223.0 0.86 0.7 x x Ra 88 2 7 s 226.0 0.97 0.9 5.28 x La 57 3 6 f 138.9 1.08 1.1 5.58 x Ce 58 4 6 f 140.1 1.06 1.12 5.54 x Pr 59 5 6 f 140.9 1.07 1.13 5.46 x Nd 60 6 6 f 144.2 1.07 1.14 5.52 x Pm 61 7 6 f 146.9 1.07 1.2 5.55 x Sm 62 8 6 f 150.4 1.07 1.17 5.64 x Eu 63 9 6 f 152.0 1.01 1.2 5.67 x Gd 64 10 6 f 157.2 1.11 1.2 6.15 x Tb 65 11 6 f 158.9 1.10 1.2 5.86 x Dy 66 12 6 f 162.5 1.10 1.22 5.94 x Ho 67 13 6 f 164.9 1.10 1.23 6.02 x Er 68 14 6 f 167.3 1.11 1.24 6.11 x Tm 69 15 6 f 168.9 1.11 1.25 6.18 x Yb 70 16 6 f 173.0 1.06 1.1 6.25 x Lu 71 17 6 f 175.0 1.14 1.27 5.43 x Ac 89 3 7 f 227.0 1.00 1.1 5.2 x Th 90 4 7 f 232.0 1.11 1.3 6.1 x Pa 91 5 7 f 231.0 1.14 1.5 5.9 x U 92 6 7 f 238.0 1.22 1.38 6.19 x Np 93 7 7 f 237.0 1.22 1.36 6.27 x Pu 94 8 7 f 239.1 1.22 1.28 6.06 x Am 95 9 7 f 241.1 1.2 1.3 5.99 x Cm 96 10 7 f 244.1 1.2 1.3 6.02 x Bk 97 11 7 f 249.1 1.2 1.3 6.23 x Cf 98 12 7 f 252.1 1.2 1.3 6.30 x Es 99 13 7 f 252.1 1.2 1.3 6.42 x Fm 100 14 7 f 257.1 1.2 1.3 6.5 x Md 101 15 7 f 256.1 1.2 1.3 6.6 x No 102 16 7 f 259.1 x 1.3 6.7 x Lr 103 17 7 f 260.1 x x x x Rf 104 4 7 d x x x x x Db 105 5 7 d x x x x x Sg 106 6 7 d x x x x x Bh 107 7 7 d x x x x x Hs 108 8 7 d x x x x x Mt 109 9 7 d x x x x x Uun 110 10 7 d x x x x x Uuu 111 11 7 d x x x x x Uub 112 12 7 d x x x x x