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| Element | Ar, standard | abridged | conventional | → formal short |
→ short, rounded |
m.s.i. | note | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | H | hydrogen | [1.00784, 1.00811] | [1.0078, 1.0082] | 1.008 | 1.008 | 1.008 | ||
| 2 | He | helium | 4.002602(2) | 4.0026 | 4.0026 | 4.0026 | |||
| 3 | Li | lithium | [6.938, 6.997] | [6.938, 6.997] | 6.94 | 6.94 | 6.94 | ||
| 4 | Be | beryllium | 9.0121831(5) | 9.0122 | 9.0122 | 9.0122 | |||
| 5 | B | boron | [10.806, 10.821] | [10.806, 10.821] | 10.81 | 10.81 | 10.81 | ||
| 6 | C | carbon | [12.0096, 12.0116] | [12.009, 12.012] | 12.011 | 12.011 | 12.011 | ||
| 7 | N | nitrogen | [14.00643, 14.00728] | [14.006, 14.008] | 14.007 | 14.007 | 14.007 | ||
| 8 | O | oxygen | [15.99903, 15.99977] | [15.999, 16.000] | 15.999 | 15.999 | 15.999 | ||
| 9 | F | fluorine | 18.998403163(6) | 18.998 | 18.998 | 18.998 | |||
| 10 | Ne | neon | 20.1797(6) | 20.180 | 20.180 | 20.180 | |||
| 11 | Na | sodium | 22.98976928(2) | 22.990 | 22.990 | 22.990 | |||
| 12 | Mg | magnesium | [24.304, 24.307] | [24.304, 24.307] | 24.305 | 24.305 | 24.305 | ||
| 13 | Al | aluminium | 26.9815384(3) | 26.982 | 26.982 | 26.982 | 2017 | ||
| 14 | Si | silicon | [28.084, 28.086] | [28.084, 28.086] | 28.085 | 28.085 | 28.085 | ||
| 15 | P | phosphorus | 30.973761998(5) | 30.974 | 30.974 | 30.974 | |||
| 16 | S | sulfur | [32.059, 32.076] | [32.059, 32.076] | 32.06 | 32.06 | 32.06 | ||
| 17 | Cl | chlorine | [35.446, 35.457] | [35.446, 35.457] | 35.45 | 35.45 | 35.45 | ||
| 18 | Ar | argon | [39.792, 39.963] | [39.792, 39.963] | 39.95[1] | 39.95 | 39.95 | interval per 2017, no short values published yet | |
| 19 | K | potassium | 39.0983(1) | 39.098 | 39.098 | 39.098 | |||
| 20 | Ca | calcium | 40.078(4) | 40.078(4) | 40.078(4) | 40.078 | |||
| 21 | Sc | scandium | 44.955908(5) | 44.956 | 44.956 | 44.956 | |||
| 22 | Ti | titanium | 47.867(1) | 47.867 | 47.867 | 47.867 | |||
| 23 | V | vanadium | 50.9415(1) | 50.942 | 50.942 | 50.942 | |||
| 24 | Cr | chromium | 51.9961(6) | 51.996 | 51.996 | 51.996 | |||
| 25 | Mn | manganese | 54.938043(2) | 54.938 | 54.938 | 54.938 | 2017 | ||
| 26 | Fe | iron | 55.845(2) | 55.845(2) | 55.845(2) | 55.845 | |||
| 27 | Co | cobalt | 58.933194(3) | 58.933 | 58.933 | 58.933 | 2017 | ||
| 28 | Ni | nickel | 58.6934(4) | 58.693 | 58.693 | 58.693 | |||
| 29 | Cu | copper | 63.546(3) | 63.546(3) | 63.546(3) | 63.546 | |||
| 30 | Zn | zinc | 65.38(2) | 65.38(2) | 65.38(2) | 65.38 | |||
| 31 | Ga | gallium | 69.723(1) | 69.723 | 69.723 | 69.723 | |||
| 32 | Ge | germanium | 72.630(8) | 72.630(8) | 72.630(8) | 72.630 | |||
| 33 | As | arsenic | 74.921595(6) | 74.922 | 74.922 | 74.922 | |||
| 34 | Se | selenium | 78.971(8) | 78.971(8) | 78.971(8) | 78.971 | |||
| 35 | Br | bromine | [79.901, 79.907] | [79.901, 79.907] | 79.904 | 79.904 | 79.904 | ||
| 36 | Kr | krypton | 83.798(2) | 83.798(2) | 83.798(2) | 83.798 | |||
| 37 | Rb | rubidium | 85.4678(3) | 85.468 | 85.468 | 85.468 | |||
| 38 | Sr | strontium | 87.62(1) | 87.62 | 87.62 | 87.62 | |||
| 39 | Y | yttrium | 88.90584(1) | 88.906 | 88.906 | 88.906 | 2017 | ||
| 40 | Zr | zirconium | 91.224(2) | 91.224(2) | 91.224(2) | 91.224 | |||
| 41 | Nb | niobium | 92.90637(1) | 92.906 | 92.906 | 92.906 | 2017 | ||
| 42 | Mo | molybdenum | 95.95(1) | 95.95 | 95.95 | 95.95 | |||
| 43 | Tc | technetium | - | 97 | |||||
| 44 | Ru | ruthenium | 101.07(2) | 101.07(2) | 101.07(2) | 101.07 | |||
| 45 | Rh | rhodium | 102.90549(2) | 102.91 | 102.91 | 102.91 | 2017 | ||
| 46 | Pd | palladium | 106.42(1) | 106.42 | 106.42 | 106.42 | |||
| 47 | Ag | silver | 107.8682(2) | 107.87 | 107.87 | 107.87 | |||
| 48 | Cd | cadmium | 112.414(4) | 112.41 | 112.41 | 112.41 | |||
| 49 | In | indium | 114.818(1) | 114.82 | 114.82 | 114.82 | |||
| 50 | Sn | tin | 118.710(7) | 118.71 | 118.71 | 118.71 | |||
| 51 | Sb | antimony | 121.760(1) | 121.76 | 121.76 | 121.76 | |||
| 52 | Te | tellurium | 127.60(3) | 127.60(3) | 127.60(3) | 127.60 | |||
| 53 | I | iodine | 126.90447(3) | 126.90 | 126.90 | 126.90 | |||
| 54 | Xe | xenon | 131.293(6) | 131.29 | 131.29 | 131.29 | |||
| 55 | Cs | caesium | 132.90545196(6) | 132.91 | 132.91 | 132.91 | |||
| 56 | Ba | barium | 137.327(7) | 137.33 | 137.33 | 137.33 | |||
| 57 | La | lanthanum | 138.90547(7) | 138.91 | 138.91 | 138.91 | |||
| 58 | Ce | cerium | 140.116(1) | 140.12 | 140.12 | 140.12 | |||
| 59 | Pr | praseodymium | 140.90766(1) | 140.91 | 140.91 | 140.91 | 2017 | ||
| 60 | Nd | neodymium | 144.242(3) | 144.24 | 144.24 | 144.24 | |||
| 61 | Pm | promethium | - | 145 | |||||
| 62 | Sm | samarium | 150.36(2) | 150.36(2) | 150.36(2) | 150.36 | |||
| 63 | Eu | europium | 151.964(1) | 151.96 | 151.96 | 151.96 | |||
| 64 | Gd | gadolinium | 157.25(3) | 157.25(3) | 157.25(3) | 157.25 | |||
| 65 | Tb | terbium | 158.925354(8) | 158.93 | 158.93 | 158.93 | 2017 | ||
| 66 | Dy | dysprosium | 162.500(1) | 162.50 | 162.50 | 162.50 | |||
| 67 | Ho | holmium | 164.930328(7) | 164.93 | 164.93 | 164.93 | 2017 | ||
| 68 | Er | erbium | 167.259(3) | 167.26 | 167.26 | 167.26 | |||
| 69 | Tm | thulium | 168.934218(6) | 168.93 | 168.93 | 168.93 | 2017 | ||
| 70 | Yb | ytterbium | 173.045(10) | 173.05 | 173.05 | 173.05 | |||
| 71 | Lu | lutetium | 174.9668(1) | 174.97 | 174.97 | 174.97 | |||
| 72 | Hf | hafnium | 178.486(6) | 178.49 | 178.49(2) | 178.49 | |||
| 73 | Ta | tantalum | 180.94788(2) | 180.95 | 180.95 | 180.95 | |||
| 74 | W | tungsten | 183.84(1) | 183.84 | 183.84 | 183.84 | |||
| 75 | Re | rhenium | 186.207(1) | 186.21 | 186.21 | 186.21 | |||
| 76 | Os | osmium | 190.23(3) | 190.23(3) | 190.23(3) | 190.23 | |||
| 77 | Ir | iridium | 192.217(2) | 192.22 | 192.22 | 192.22 | 2017 | ||
| 78 | Pt | platinum | 195.084(9) | 195.08 | 195.08 | 195.08 | |||
| 79 | Au | gold | 196.966570(4) | 196.97 | 196.97 | 196.97 | 2017 | ||
| 80 | Hg | mercury | 200.592(3) | 200.59 | 200.59 | 200.59 | |||
| 81 | Tl | thallium | [204.382, 204.385] | [204.38, 204.39] | 204.38 | 204.38 | 204.38 | ||
| 82 | Pb | lead | [206.14, 207.94] | 207.2 | 207.2 | 207.2 | |||
| 83 | Bi | bismuth | 208.98040(1) | 208.98 | 208.98 | 208.98 | |||
| 84 | Po | polonium | - | 209 | |||||
| 85 | At | astatine | - | 210 | |||||
| 86 | Rn | radon | - | 222 | |||||
| 87 | Fr | francium | - | 223 | |||||
| 88 | Ra | radium | - | 226 | |||||
| 89 | Ac | actinium | - | 227 | |||||
| 90 | Th | thorium | 232.0377(4) | 232.04 | 232.04 | 232.04 | |||
| 91 | Pa | protactinium | 231.03588(1) | 231.04 | 231.04 | 231.04 | 2017 | ||
| 92 | U | uranium | 238.02891(3) | 238.03 | 238.03 | 238.03 | |||
| 93 | Np | neptunium | - | 237 | |||||
| 94 | Pu | plutonium | - | 244 | |||||
| 95 | Am | americium | - | 243 | |||||
| 96 | Cm | curium | - | 247 | |||||
| 97 | Bk | berkelium | - | 247 | |||||
| 98 | Cf | californium | - | 251 | |||||
| 99 | Es | einsteinium | - | 252 | |||||
| 100 | Fm | fermium | - | 257 | |||||
| 101 | Md | mendelevium | - | 258 | |||||
| 102 | No | nobelium | - | 259 | |||||
| 103 | Lr | lawrencium | - | 266 | |||||
| 104 | Rf | rutherfordium | - | 267 | |||||
| 105 | Db | dubnium | - | 268 | |||||
| 106 | Sg | seaborgium | - | 269 | |||||
| 107 | Bh | bohrium | - | 270 | |||||
| 108 | Hs | hassium | - | 269 | |||||
| 109 | Mt | meitnerium | - | 278 | |||||
| 110 | Ds | darmstadtium | - | 281 | |||||
| 111 | Rg | roentgenium | - | 282 | |||||
| 112 | Cn | copernicium | - | 285 | |||||
| 113 | Nh | nihonium | - | 286 | |||||
| 114 | Fl | flerovium | - | 289 | |||||
| 115 | Mc | moscovium | - | 290 | |||||
| 116 | Lv | livermorium | - | 293 | |||||
| 117 | Ts | tennessine | - | 294 | |||||
| 118 | Og | oganesson | - | 294 | |||||
| 119 | Uue | ununennium | - | ||||||
| 120 | Ubn | unbinilium | - | ||||||
| 121 | Ubu | unbiunium | - | ||||||
- ↑ "IUPAC Periodic Table of the Elements and Isotopes". King's Center for Visualization in Science. IUPAC, King's Center for Visualization in Science. Retrieved 8 October 2019.