<Li> Jump up ^ See Brown, Geoffrey (2012). The Inaccessible Earth: An integrated view to its structure and composition . Springer Science & Business Media . p. 88 . ISBN 9789401115162 . </Li> <Table> <Tr> <Th> number </Th> <Th> symbol </Th> <Th> name </Th> <Th> use </Th> <Th> WEL </Th> <Th> CRC </Th> <Th> LNG </Th> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> hydrogen </Td> <Td> 2.20 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> </Td> <Td> He </Td> <Td> helium </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> </Td> <Td> Li </Td> <Td> lithium </Td> <Td> 0.98 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> </Td> <Td> Be </Td> <Td> beryllium </Td> <Td> 1.57 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 5 </Td> <Td> </Td> <Td> boron </Td> <Td> 2.04 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 6 </Td> <Td> </Td> <Td> carbon </Td> <Td> 2.55 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 7 </Td> <Td> </Td> <Td> nitrogen </Td> <Td> 3.04 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 8 </Td> <Td> O </Td> <Td> oxygen </Td> <Td> 3.44 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 9 </Td> <Td> </Td> <Td> fluorine </Td> <Td> 3.98 </Td> <Td> 3.98 </Td> <Td> 3.98 </Td> <Td> 3.90 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> Ne </Td> <Td> neon </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Na </Td> <Td> sodium </Td> <Td> 0.93 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Mg </Td> <Td> magnesium </Td> <Td> 1.31 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Al </Td> <Td> aluminium </Td> <Td> 1.61 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Si </Td> <Td> silicon </Td> <Td> 1.90 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 15 </Td> <Td> </Td> <Td> phosphorus </Td> <Td> 2.19 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 16 </Td> <Td> </Td> <Td> sulfur </Td> <Td> 2.58 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 17 </Td> <Td> Cl </Td> <Td> chlorine </Td> <Td> 3.16 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 18 </Td> <Td> Ar </Td> <Td> argon </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 19 </Td> <Td> </Td> <Td> potassium </Td> <Td> 0.82 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 20 </Td> <Td> Ca </Td> <Td> calcium </Td> <Td> 1.00 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 21 </Td> <Td> Sc </Td> <Td> scandium </Td> <Td> 1.36 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 22 </Td> <Td> Ti </Td> <Td> titanium </Td> <Td> 1.54 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 23 </Td> <Td> V </Td> <Td> vanadium </Td> <Td> 1.63 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 24 </Td> <Td> Cr </Td> <Td> chromium </Td> <Td> 1.66 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Mn </Td> <Td> manganese </Td> <Td> 1.55 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 26 </Td> <Td> Fe </Td> <Td> iron </Td> <Td> 1.83 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 27 </Td> <Td> Co </Td> <Td> cobalt </Td> <Td> 1.88 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 28 </Td> <Td> Ni </Td> <Td> nickel </Td> <Td> 1.91 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 29 </Td> <Td> Cu </Td> <Td> copper </Td> <Td> 1.90 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 30 </Td> <Td> Zn </Td> <Td> zinc </Td> <Td> 1.65 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 31 </Td> <Td> Ga </Td> <Td> gallium </Td> <Td> 1.81 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 32 </Td> <Td> Ge </Td> <Td> germanium </Td> <Td> 2.01 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 33 </Td> <Td> As </Td> <Td> arsenic </Td> <Td> 2.18 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 34 </Td> <Td> Se </Td> <Td> selenium </Td> <Td> 2.55 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 35 </Td> <Td> Br </Td> <Td> bromine </Td> <Td> 2.96 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 36 </Td> <Td> Kr </Td> <Td> krypton </Td> <Td> 3.00 </Td> <Td> 3.00 </Td> <Td> no data </Td> <Td> no data </Td> </Tr> <Tr> <Td> 37 </Td> <Td> Rb </Td> <Td> rubidium </Td> <Td> 0.82 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 38 </Td> <Td> Sr </Td> <Td> strontium </Td> <Td> 0.95 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 39 </Td> <Td> Y </Td> <Td> yttrium </Td> <Td> 1.22 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 40 </Td> <Td> Zr </Td> <Td> zirconium </Td> <Td> 1.33 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 41 </Td> <Td> Nb </Td> <Td> niobium </Td> <Td> 1.6 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 42 </Td> <Td> Mo </Td> <Td> molybdenum </Td> <Td> 2.16 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 43 </Td> <Td> Tc </Td> <Td> technetium </Td> <Td> 1.9 </Td> <Td> 1.9 </Td> <Td> 2.10 </Td> <Td> 2.10 </Td> </Tr> <Tr> <Td> 44 </Td> <Td> Ru </Td> <Td> ruthenium </Td> <Td> 2.2 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 45 </Td> <Td> Rh </Td> <Td> rhodium </Td> <Td> 2.28 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 46 </Td> <Td> Pd </Td> <Td> palladium </Td> <Td> 2.20 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 47 </Td> <Td> Ag </Td> <Td> silver </Td> <Td> 1.93 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 48 </Td> <Td> Cd </Td> <Td> cadmium </Td> <Td> 1.69 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 49 </Td> <Td> In </Td> <Td> indium </Td> <Td> 1.78 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 50 </Td> <Td> Sn </Td> <Td> tin </Td> <Td> 1.96 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 51 </Td> <Td> Sb </Td> <Td> antimony </Td> <Td> 2.05 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 52 </Td> <Td> Te </Td> <Td> tellurium </Td> <Td> 2.1 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 53 </Td> <Td> </Td> <Td> iodine </Td> <Td> 2.66 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 54 </Td> <Td> Xe </Td> <Td> xenon </Td> <Td> 2.6 </Td> <Td> 2.6 </Td> <Td> 2.60 </Td> <Td> no data </Td> </Tr> <Tr> <Td> 55 </Td> <Td> Cs </Td> <Td> caesium </Td> <Td> 0.79 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 56 </Td> <Td> Ba </Td> <Td> barium </Td> <Td> 0.89 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 57 </Td> <Td> La </Td> <Td> lanthanum </Td> <Td> 1.10 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 58 </Td> <Td> Ce </Td> <Td> cerium </Td> <Td> 1.12 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 59 </Td> <Td> Pr </Td> <Td> praseodymium </Td> <Td> 1.13 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 60 </Td> <Td> Nd </Td> <Td> neodymium </Td> <Td> 1.14 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 61 </Td> <Td> Pm </Td> <Td> promethium </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 62 </Td> <Td> Sm </Td> <Td> samarium </Td> <Td> 1.17 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 63 </Td> <Td> Eu </Td> <Td> europium </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 64 </Td> <Td> Gd </Td> <Td> gadolinium </Td> <Td> 1.20 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 65 </Td> <Td> Tb </Td> <Td> terbium </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 66 </Td> <Td> Dy </Td> <Td> dysprosium </Td> <Td> 1.22 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 67 </Td> <Td> Ho </Td> <Td> holmium </Td> <Td> 1.23 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 68 </Td> <Td> Er </Td> <Td> erbium </Td> <Td> 1.24 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 69 </Td> <Td> Tm </Td> <Td> thulium </Td> <Td> 1.25 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 70 </Td> <Td> Yb </Td> <Td> ytterbium </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 71 </Td> <Td> Lu </Td> <Td> lutetium </Td> <Td> 1.27 </Td> <Td> 1.27 </Td> <Td> 1.0 </Td> <Td> 1.0 </Td> </Tr> <Tr> <Td> 72 </Td> <Td> Hf </Td> <Td> hafnium </Td> <Td> 1.3 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 73 </Td> <Td> Ta </Td> <Td> tantalum </Td> <Td> 1.5 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 74 </Td> <Td> </Td> <Td> tungsten </Td> <Td> 2.36 </Td> <Td> 2.36 </Td> <Td> 1.7 </Td> <Td> 1.7 </Td> </Tr> <Tr> <Td> 75 </Td> <Td> Re </Td> <Td> rhenium </Td> <Td> 1.9 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 76 </Td> <Td> Os </Td> <Td> osmium </Td> <Td> 2.2 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 77 </Td> <Td> Ir </Td> <Td> iridium </Td> <Td> 2.20 </Td> <Td> 2.20 </Td> <Td> 2.2 </Td> <Td> 2.2 </Td> </Tr> <Tr> <Td> 78 </Td> <Td> Pt </Td> <Td> platinum </Td> <Td> 2.28 </Td> <Td> 2.28 </Td> <Td> 2.2 </Td> <Td> 2.2 </Td> </Tr> <Tr> <Td> 79 </Td> <Td> Au </Td> <Td> gold </Td> <Td> 2.54 </Td> <Td> 2.54 </Td> <Td> 2.4 </Td> <Td> 2.4 </Td> </Tr> <Tr> <Td> 80 </Td> <Td> Hg </Td> <Td> mercury </Td> <Td> 2.00 </Td> <Td> 2.00 </Td> <Td> 1.9 </Td> <Td> 1.9 </Td> </Tr> <Tr> <Td> 81 </Td> <Td> Tl </Td> <Td> thallium </Td> <Td> 1.62 </Td> <Td> 1.62 </Td> <Td> 1.8 </Td> <Td> 1.8 </Td> </Tr> <Tr> <Td> 82 </Td> <Td> Pb </Td> <Td> lead </Td> <Td> 2.33 </Td> <Td> 2.33 </Td> <Td> 1.8 </Td> <Td> 1.8 </Td> </Tr> <Tr> <Td> 83 </Td> <Td> Bi </Td> <Td> bismuth </Td> <Td> 2.02 </Td> <Td> 2.02 </Td> <Td> 1.9 </Td> <Td> 1.9 </Td> </Tr> <Tr> <Td> 84 </Td> <Td> Po </Td> <Td> polonium </Td> <Td> 2.0 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 85 </Td> <Td> At </Td> <Td> astatine </Td> <Td> 2.2 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 86 </Td> <Td> Rn </Td> <Td> radon </Td> <Td> no data </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 87 </Td> <Td> Fr </Td> <Td> francium </Td> <Td> no data </Td> <Td_colspan="3"> 0.7 </Td> </Tr> <Tr> <Td> 88 </Td> <Td> Ra </Td> <Td> radium </Td> <Td> 0.9 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 89 </Td> <Td> Ac </Td> <Td> actinium </Td> <Td> 1.1 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 90 </Td> <Td> Th </Td> <Td> thorium </Td> <Td> 1.3 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 91 </Td> <Td> Pa </Td> <Td> protactinium </Td> <Td> 1.5 </Td> <Td_colspan="3"> same </Td> </Tr> <Tr> <Td> 92 </Td> <Td> U </Td> <Td> uranium </Td> <Td> 1.38 </Td> <Td> 1.38 </Td> <Td> 1.7 </Td> <Td> 1.7 </Td> </Tr> <Tr> <Td> 93 </Td> <Td> Np </Td> <Td> neptunium </Td> <Td> 1.36 </Td> <Td> 1.36 </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 94 </Td> <Td> Pu </Td> <Td> plutonium </Td> <Td> 1.28 </Td> <Td> 1.28 </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 95 </Td> <Td> Am </Td> <Td> americium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 96 </Td> <Td> Cm </Td> <Td> curium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 97 </Td> <Td> Bk </Td> <Td> berkelium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 98 </Td> <Td> Cf </Td> <Td> californium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 99 </Td> <Td> Es </Td> <Td> einsteinium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 100 </Td> <Td> Fm </Td> <Td> fermium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 101 </Td> <Td> Md </Td> <Td> mendelevium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> <Tr> <Td> 102 </Td> <Td> No </Td> <Td> nobelium </Td> <Td> 1.3 </Td> <Td> 1.3 </Td> <Td> no data </Td> <Td> 1.3 </Td> </Tr> </Table> <Tr> <Th> number </Th> <Th> symbol </Th> <Th> name </Th> <Th> use </Th> <Th> WEL </Th> <Th> CRC </Th> <Th> LNG </Th> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> hydrogen </Td> <Td> 2.20 </Td> <Td_colspan="3"> same </Td> </Tr>

Electronegativity is at the top of the periodic table