Page 766 - Corrosion Engineering Principles and Practice

716 A p p e n d i x B

18 He Helium 4.0 Ne Neon 20.2 Ar Argon 40.0 Kr Krypton 83.8 Xe Xenon 131.3 Rn Radon (222)
2 10 18 36 54 86
–1 –1 –1 –1 –1 –3
17 F Fluorine 19.0 Cl Chlorine 35.5 Br Bromine 79.9 I Iodine 126.9 At Astatine (210) Lu Lutetium 175.0 103 Lr Lawrencium (260)
9 17 35 53 85 71
–2 –2 +4 +6 –2 +4 +6 –2 +4 +6 ±2 +4 –2 Yb –3
16 O Oxygen 16.0 S Sulphur 32.1 Se Selenium 79.0 Te Tellurium 127.6 Po Polonium (209) Ytterbium 173.0 102 No Nobelium (259)
8 16 34 52 84 70
–3 +5 –3 –3 +5 –3 +5 –3 +5 –2 Tm –3
15 N Nitrogen 14.0 P Phosphorus 31.0 As Arsenic 74.9 Sb Antimony 121.8 Bi Bismuth 209.0 69 Thulium 168.9 101 Md Mendelevium (258)
7 15 33 51 83
+4 +2 +4 +2 +4 +2 +2 +4 +2 +4 +3
14 C Carbon 12.0 Si Silicon 28.1 Ge Germanium 72.6 Sn Tin 118.7 Pb Lead 207.2 Er Erbium 167.3 100 Fm Fermium (257)
6 14 32 50 82 68
+3 +3 +3 +3 +1 +1 +3 +3
13 B Boron 10.8 Al Aluminum 27.0 Ga Gallium 69.7 In Indium 114.8 Tl Thallium 204.4 Ho Holmium 164.9 Es Einsteinium (252)
5 13 31 49 81 67 99
+2 +3 +1 +2 +3
12 Zn Zinc 65.4 Cd Cadmium 112.4 Hg Mercury 200.6 Dy Dysprosium 162.5 Cf Californium (251)
30 48 80 66 98
+1 +2 +1 +1 +3 +3 Tb +4 +3 +4
11 Cu Copper 63.5 Ag Silver 107.9 Au Gold 197.0 Terbium 158.9 Bk Berkelium (247)
29 47 79 65 97
+2 +3 +2 +3 +4 +2 +4 +3 +3
10 Ni Nickel 58.7 Pd Palladium 106.4 Pt Platinum 195.1 Gd Gadolinium 157.3 Cm Curium (247)
28 46 78 64 96
+2 +3 Co Cobalt 58.9 +3 Rh Rhodium 102.9 +2 +3 +4 Ir Iridium 192.2 +2 +3 Eu Europium 152.0 +3 +4 Am +5 +6 Americium (243)
} Combining Capacity 8 27 +3 +2 Fe Iron 55.8 45 +3 Ru Ruthenium 101.1 77 +2 +3 +4 Os Osmium 190.2 63 +2 +3 Sm Samarium 150.4 95 +3 +4 Pu +5 +6 Plutonium (244)
9

+4 +2 7 26 +2 25 +7 Mn Manganese 54.9 44 +7 43 +3 Tc (99) 76 +7 75 +3 Re Rhenium 186.2 62 +3 61 Pm (145) 94 +3 93 +4 Np +5 +6 Neptunium (244)

Key Symbol → C Carbon 12.0 ↑ Atomic Mass ∗ ∗ Based on C 12 = 12.00000 6 +2 24 +2 +3 +5 +6 Cr Chromium 52.0 +6 42 +2 Mo Molybdenum Technetium 95.9 +6 74 +2 W Tungsten 183.9 +3 60 +3 +4 Nd Neodymium Promethium 144.2 +3 92 +4 +4 +5 +5 U +6 Uranium 238

6 5 23 +3 +4 V Vanadium 50.9 +5 41 +4 +3 Nb Niobium 92.9 +5 73 +4 Ta Tantalum 180.9 59 +3 +4 Pr Praseody- mium 140.9 91 +4 Pa Protactinium (231)
Atomic Number → 4 22 +3 Ti Titanium 47.9 40 +3 Zr Zirconium 91.2 72 Hf Hafnium 178.5 58 Ce Cerium 140.1 90 Th Thorium 232.0

3
21 Sc Scandium 45.0 39 Y Yttrium 88.9 +3 57 La Lanthanum 138.9 +3 89 Ac Actinium (227) Lanthanide Series Actinide Series
+2 +2 +2 +2 +2 +2
Be Ca Ba Barium Ra
2 Beryllium 9.0 Mg Magnesium 24.3 Calcium 40.1 Sr Strontium 87.6 137.3 Radium (226)
4 12 20 38 56 88 †Masses in Parentheses are the Mass Numbers of the Most Stable Isotope.
±1 +1 +1 +1 +1 +1 +1
1 H Hydrogen 1.0 Li Lithium 6.9 Na Sodium 23.0 K Potassium 39.1 Rb Rubidium 85.5 Cs Cesium 132.9 Fr Francium (223)†
1 3 11 19 37 55 87