Àkójọ àmì-ìdámọ̀ àwon apilẹ̀sẹ̀
ojúewé àtojọ Wikimedia
(Àtúnjúwe láti List of elements by symbol)
Current symbols
àtúnṣeSymbol | Name | Etymology of symbol | Atomic number | Relative atomic mass | Group | Period |
---|---|---|---|---|---|---|
Ac | Actinium | from Greek aktinos | 89 | [1] | [227]7 | |
Ag | Silver | Latin argentum | 47 | [2] | 107.8682(2)11 | 5 |
Al | Aluminium (Aluminum) | Latin alumen | 13 | 26.9815386(8) | 13 | 3 |
Am | Americium | the Americas | 95 | [1] | [243]7 | |
Ar | Argon | Greek argon | 18 | [2][3] | 39.948(1)18 | 3 |
As | Arsenic | Greek arsenikos | 33 | 74.92160(2) | 15 | 4 |
At | Astatine | Greek astatos | 85 | [1] | [210]17 | 6 |
Au | Gold | Latin aurum | 79 | 196.966569(4) | 11 | 6 |
B | Boron | borax | 5 | [2][3][4] | 10.811(7)13 | 2 |
Ba | Barium | Greek barys | 56 | 137.327(7) | 2 | 6 |
Be | Beryllium | beryl | 4 | 9.012182(3) | 2 | 2 |
Bh | Bohrium | Niels Bohr | 107 | [1] | [264]7 | 7 |
Bi | Bismuth | from German wissmuth | 83 | 208.98040(1) | 15 | 6 |
Bk | Berkelium | Berkeley, California | 97 | [1] | [247]7 | |
Br | Bromine | Greek bromos | 35 | 79.904(1) | 17 | 4 |
C | Carbon | Latin carbo | 6 | [2][3] | 12.0107(8)14 | 2 |
Ca | Calcium | Latin calx | 20 | [2] | 40.078(4)2 | 4 |
Cd | Cadmium | from Greek kadmia | 48 | [2] | 112.411(8)12 | 5 |
Ce | Cerium | Ceres | 58 | [2] | 140.116(1)6 | |
Cf | Californium | State and University of California | 98 | [1] | [251]7 | |
Cl | Chlorine | Greek chloros | 17 | [2][3][4] | 35.453(2)17 | 3 |
Cm | Curium | Pierre and Marie Curie and the traditional -um ending | 96 | [1] | [247]7 | |
Cn | Copernicium | Nicolaus Copernicus | 112 | [1] | [285]12 | 7 |
Co | Cobalt | from German kobold | 27 | 58.933195(5) | 9 | 4 |
Cr | Chromium | Greek chroma | 24 | 51.9961(6) | 6 | 4 |
Cs | Caesium (Cesium) | Latin caesius | 55 | 132.9054519(2) | 1 | 6 |
Cu | Copper | Latin Cuprum | 29 | [3] | 63.546(3)11 | 4 |
Db | Dubnium | Dubna, Russia | 105 | [1] | [262]5 | 7 |
Ds | Darmstadtium | Darmstadt, Germany | 110 | [1] | [271]10 | 7 |
Dy | Dysprosium | Greek dysprositos | 66 | [2] | 162.500(1)6 | |
Er | Erbium | Ytterby, Sweden | 68 | [2] | 167.259(3)6 | |
Es | Einsteinium | Albert Einstein | 99 | [1] | [252]7 | |
Eu | Europium | Europe | 63 | [2] | 151.964(1)6 | |
F | Fluorine | Latin fluo | 9 | 18.9984032(5) | 17 | 2 |
Fe | Iron | Latin ferrum | 26 | 55.845(2) | 8 | 4 |
Fm | Fermium | Enrico Fermi | 100 | [1] | [257]7 | |
Fr | Francium | France | 87 | [1] | [223]1 | 7 |
Ga | Gallium | Latin Gallia | 31 | 69.723(1) | 13 | 4 |
Gd | Gadolinium | gadolinite | 64 | [2] | 157.25(3)6 | |
Ge | Germanium | Germany | 32 | 72.64(1) | 14 | 4 |
H | Hydrogen | Greek hydrogenes | 1 | [2][3][4] | 1.00794(7)1 | 1 |
He | Helium | Greek helios | 2 | [2][3] | 4.002602(2)18 | 1 |
Hf | Hafnium | Latin Hafnia | 72 | 178.49(2) | 4 | 6 |
Hg | Mercury | Latin hydrargyrum | 80 | 200.59(2) | 12 | 6 |
Ho | Holmium | Latin Holmia | 67 | 164.930 32(2) | 6 | |
Hs | Hassium | Hesse, Germany | 108 | [1] | [277]8 | 7 |
I | Iodine | Greek ioeides | 53 | 126.904 47(3) | 17 | 5 |
In | Indium | indigo blue | 49 | 114.818(3) | 13 | 5 |
Ir | Iridium | Greek iris | 77 | 192.217(3) | 9 | 6 |
K | Potassium (Kalium) | Latin kalium | 19 | 39.0983(1) | 1 | 4 |
Kr | Krypton | Greek kryptos | 36 | [2][4] | 83.798(2)18 | 4 |
La | Lanthanum | Greek lanthanien | 57 | [2] | 138.90547(7)6 | |
Li | Lithium | Greek lithos | 3 | [2][3][4][5] | 6.941(2)1 | 2 |
Lr | Lawrencium | Ernest O. Lawrence | 103 | [1] | [262]3 | 7 |
Lu | Lutetium | Latin Lutetia | 71 | [2] | 174.967(1)3 | 6 |
Md | Mendelevium | Dmitri Mendeleyev | 101 | [1] | [258]7 | |
Mg | Magnesium | Magnesia, Greece | 12 | 24.3050(6) | 2 | 3 |
Mn | Manganese | Latin magnes | 25 | 54.938045(5) | 7 | 4 |
Mo | Molybdenum | Greek molybdos | 42 | [2] | 95.94(2)6 | 5 |
Mt | Meitnerium | Lise Meitner | 109 | [1] | [268]9 | 7 |
N | Nitrogen | Greek nitron | 7 | [2][3] | 14.0067(2)15 | 2 |
Na | Sodium | Latin natrium | 11 | 22.98976928(2) | 1 | 3 |
Nb | Niobium | Niobe | 41 | 92.906 38(2) | 5 | 5 |
Nd | Neodymium | Greek neos didymos | 60 | [2] | 144.242(3)6 | |
Ne | Neon | Greek neos | 10 | [2][4] | 20.1797(6)18 | 2 |
Ni | Nickel | German kupfernickel | 28 | 58.6934(2) | 10 | 4 |
No | Nobelium | Alfred Nobel | 102 | [1] | [259]7 | |
Np | Neptunium | Neptune | 93 | [1] | [237]7 | |
O | Oxygen | Greek oxys | 8 | [2][3] | 15.9994(3)16 | 2 |
Os | Osmium | Greek osme | 76 | [2] | 190.23(3)8 | 6 |
P | Phosphorus | Greek phosphoros | 15 | 30.973762(2) | 15 | 3 |
Pa | Protactinium | Greek protos and actinium | 91 | [1] | 231.03588(2)7 | |
Pb | Lead | Latin plumbum | 82 | [2][3] | 207.2(1)14 | 6 |
Pd | Palladium | Pallas (genitive Pallados) | 46 | [2] | 106.42(1)10 | 5 |
Pm | Promethium | Prometheus | 61 | [1] | [145]6 | |
Po | Polonium | Poland | 84 | [1] | [210]16 | 6 |
Pr | Praseodymium | Greek prasios | 59 | 140.90765(2) | 6 | |
Pt | Platinum | Greek platina | 78 | 195.084(9) | 10 | 6 |
Pu | Plutonium | Pluto | 94 | [1] | [244]7 | |
Ra | Radium | Latin radius | 88 | [1] | [226]2 | 7 |
Rb | Rubidium | Latin rubidus | 37 | [2] | 85.4678(3)1 | 5 |
Re | Rhenium | German Rheinprovinz | 75 | 186.207(1) | 7 | 6 |
Rf | Rutherfordium | Ernest Rutherford | 104 | [1] | 2614 | 7 |
Rg | Roentgenium | Wilhelm Conrad Röntgen | 111 | [1] | [272]11 | 7 |
Rh | Rhodium | Greek rhodon | 45 | 102.905 50(2) | 9 | 5 |
Rn | Radon | radium and emanation | 86 | [1] | [220]18 | 6 |
Ru | Ruthenium | Latin Ruthenia | 44 | [2] | 101.07(2)8 | 5 |
S | Sulfur (Sulphur) | Latin sulfur | 16 | [2][3] | 32.065(5)16 | 3 |
Sb | Antimony | Latin stibium | 51 | [2] | 121.760(1)15 | 5 |
Sc | Scandium | Scandinavia | 21 | 44.955912(6) | 3 | 4 |
Se | Selenium | Greek selene | 34 | [3] | 78.96(3)16 | 4 |
Sg | Seaborgium | Glenn T. Seaborg | 106 | [1] | [266]6 | 7 |
Si | Silicon | Latin silex | 14 | [3] | 28.0855(3)14 | 3 |
Sm | Samarium | samarskite | 62 | [2] | 150.36(2)6 | |
Sn | Tin | Latin stannum | 50 | [2] | 118.710(7)14 | 5 |
Sr | Strontium | Gaelic Strontian | 38 | [2][3] | 87.62(1)2 | 5 |
Ta | Tantalum | King Tantalus | 73 | 180.94788(2) | 5 | 6 |
Tb | Terbium | Ytterby, Sweden | 65 | 158.92535(2) | 6 | |
Tc | Technetium | Greek technetos | 43 | [1] | [98]7 | 5 |
Te | Tellurium | Greek tellus | 52 | [2] | 127.60(3)16 | 5 |
Th | Thorium | Thor | 90 | [1][2] | 232.03806(2)7 | |
Ti | Titanium | the Titans | 22 | 47.867(1) | 4 | 4 |
Tl | Thallium | Greek thallos | 81 | 204.3833(2) | 13 | 6 |
Tm | Thulium | Thule and the traditional -ium ending | 69 | 168.93421(2) | 6 | |
U | Uranium | Uranus | 92 | [1][2][4] | 238.02891(3)7 | |
Uuh | Ununhexium | Latin uni, uni, and Greek hex | 116 | [1] | [292]16 | 7 |
Uuo | Ununoctium | Latin uni, uni, and oct | 118 | [1] | [294]18 | 7 |
Uup | Ununpentium | Latin uni, uni, and Greek pent | 115 | [1] | [288]15 | 7 |
Uuq | Ununquadium | Latin uni, uni, and quadr | 114 | [1] | [289]14 | 7 |
Uus | Ununseptium | Latin uni, uni, and Greek sept | 117 | [1] | [295]17 | 7 |
Uut | Ununtrium | Latin uni, uni, and Greek tri | 113 | [1] | [284]13 | 7 |
V | Vanadium | Vanadis | 23 | 50.9415(1) | 5 | 4 |
W | Tungsten | German wolfram | 74 | 183.84(1) | 6 | 6 |
Xe | Xenon | Greek xenos | 54 | [2][4] | 131.293(6)18 | 5 |
Y | Yttrium | Ytterby, Sweden | 39 | 88.90585(2) | 3 | 5 |
Yb | Ytterbium | Ytterby, Sweden | 70 | [2] | 173.04(3)6 | |
Zn | Zinc | German zink | 30 | 65.409(4) | 12 | 4 |
Zr | Zirconium | zircon | 40 | [2] | 91.224(2)4 | 5 |
Some element categories in the periodic table
Metals | Metalloids | Nonmetals | Unknown chemical properties | |||||||
Alkali metals |
Alkaline earth metals |
Inner transition metals | Transition metals |
Post-transition metals |
Other nonmetals |
Halogens | Noble gases | |||
Lanthanides | Actinides |
Itokasi
àtúnṣe- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 1.30 1.31 1.32 1.33 1.34 1.35 1.36 The element does not have any stable nuclides, and a value in brackets, e.g. [209], indicates the mass number of the longest-lived isotope of the element. However, three elements, thorium, protactinium, and uranium, have a characteristic terrestrial isotopic composition, and thus their atomic mass given.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 The isotopic composition of this element varies in some geological specimens, and the variation may exceed the uncertainty stated in the table.
- ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 The isotopic composition varies in terrestrial material such that a more precise atomic weight can not be given.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 The isotopic composition of the element can vary in commercial materials, which can cause the atomic weight to deviate significantly from the given value.
- ↑ The atomic weight of commercial Lithium can vary between 6.939 and 6.996—analysis of the specific material is necessary to find a more accurate value.