Masa-Zenbaki: Nukleoko protoi-kopuruaren eta neutroi-kopuruaren batura
Masa-zenbakia, masa zenbakia edo zenbaki masikoa atomo baten pisua da.
Hau kalkulatzeko, nukleoaren protoi eta neutroi kopurua gehitzen da. A letrarekin adierazten da (pisu atomiko esan nahi duen Atomgewicht aleman hitzetik)
Idaztean elementuaren sinboloaren aurrean, goiindize formatuarekin jar ohi da, atomo-zenbakiaren azpian.
Protoi eta neutroi kopuruaren batura denean oinarrituz, neutroi kopurua kalkulatu daiteke A-Z eginez. Adibidez, zirkonio () atomo batek 40 protoi eta 51 neutroi izango ditu; germanio () atomo batek 32 protoi eta 41 neutroi izango ditu.
Hidrogenoa izan ezik, atomo guztien masa-zenbakia atomo-zenbakiaren bikoitza baino gehiago da.
Atomoen masa-zenbakia
Elementuen zerrenda, zenbaki atomiko, izen, sinbolo eta masa-zenbakiarekin:
| Zenbaki atomikoa | Izena | Sinboloa | Masa-zenbakia(g/Mol) |
|---|---|---|---|
| 1 | Hidrogeno | H | 1.00794(7) |
| 2 | Helio | He | 4.002602(2) |
| 3 | Litio | Li | 6.941(2) |
| 4 | Berilio | Be | 9.012182(3) |
| 5 | Boro | B | 10.811(7) |
| 6 | Karbono | C | 12.0107(8) |
| 7 | Nitrogeno | N | 14.0067(2) |
| 8 | Oxigeno | O | 15.9994(3) |
| 9 | Fluor | F | 18.9984032(5) |
| 10 | Neon | Ne | 20.1797(6) |
| 11 | Sodio | Na | 22.98976928(2) |
| 12 | Magnesio | Mg | 24.3050(6) |
| 13 | Aluminio | Al | 26.9815386(8) |
| 14 | Silizio | Si | 28.0855(3) |
| 15 | Fosforo | P | 30.973762(2) |
| 16 | Sufre | S | 32.065(5) |
| 17 | Kloro | Cl | 35.453(2) |
| 18 | Argon | Ar | 39.948(1) |
| 19 | Potasio | K | 39.0983(1) |
| 20 | Kaltzio | Ca | 40.078(4) |
| 21 | Eskandio | Sc | 44.955912(6) |
| 22 | Titanio | Ti | 47.867(1) |
| 23 | Banadio | V | 50.9415(1) |
| 24 | Kromo | Cr | 51.9961(6) |
| 25 | Manganeso | Mn | 54.938045(5) |
| 26 | Burdin | Fe | 55.845(2) |
| 27 | Kobalto | Co | 58.933195(5) |
| 28 | Nikel | Ni | 58.6934(2) |
| 29 | Kobre | Cu | 63.546(3) |
| 30 | Zink | Zn | 65.409(4) |
| 31 | Galio | Ga | 69.723(1) |
| 32 | Germanio | Ge | 72.64(1) |
| 33 | Artseniko | As | 74.92160(2) |
| 34 | Selenio | Se | 78.96(3) |
| 35 | Bromo | Br | 79.904(1) |
| 36 | Kripton | Kr | 83.798(2) |
| 37 | Rubidio | Rb | 85.4678(3) |
| 38 | Estrontzio | Sr | 87.62(1) |
| 39 | Itrio | Y | 88.90585(2) |
| 40 | Zirkonio | Zr | 91.224(2) |
| 41 | Niobio | Nb | 92.906 38(2) |
| 42 | Molibdeno | Mo | 95.94(2) |
| 43 | Teknezio | Tc | [98.9063](1) |
| 44 | Rutenio | Ru | 101.07(2) |
| 45 | Rodio | Rh | 102.90550(2) |
| 46 | Paladio | Pd | 106.42(1) |
| 47 | Zilar | Ag | 107.8682(2) |
| 48 | Kadmio | Cd | 112.411(8) |
| 49 | Indio | In | 114.818(3) |
| 50 | Eztainu | Sn | 118.710(7) |
| 51 | Antimonio | Sb | 121.760(1) |
| 52 | Telurio | Te | 127.60(3) |
| 53 | Iodo | I | 126.90447(3) |
| 54 | Xenon | Xe | 131.293(6) |
| 55 | Zesio | Cs | 132.9054519(2) |
| 56 | Bario | Ba | 137.327(7) |
| 57 | Lantano | La | 138.90547(7) |
| 58 | Zerio | Ce | 140.116(1) |
| 59 | Praseodimio | Pr | 140.90765(2) |
| 60 | Neodimio | Nd | 144.242(3) |
| 61 | Prometio | Pm | [146.9151] |
| 62 | Samario | Sm | 150.36(2) |
| 63 | Europio | Eu | 151.964(1) |
| 64 | Gadolinio | Gd | 157.25(3) |
| 65 | Terbio | Tb | 158.92535(2) |
| 66 | Disprosio | Dy | 162.500(1) |
| 67 | Holmio | Ho | 164.93032(2) |
| 68 | Erbio | Er | 167.259(3) |
| 69 | Tulio | Tm | 168.93421(2) |
| 70 | Iterbio | Yb | 173.04(3) |
| 71 | Lutezio | Lu | 174.967(1) |
| 72 | Hafnio | Hf | 178.49(2) |
| 73 | Tantalo | Ta | 180.9479(1) |
| 74 | Wolframio | W | 183.84(1) |
| 75 | Renio | Re | 186.207(1) |
| 76 | Osmio | Os | 190.23(3) |
| 77 | Iridio | Ir | 192.217(3) |
| 78 | Platino | Pt | 195.084(9) |
| 79 | Urre | Au | 196.966569(4) |
| 80 | Merkurio | Hg | 200.59(2) |
| 81 | Talio | Tl | 204.3833(2) |
| 82 | Berun | Pb | 207.2(1) |
| 83 | Bismuto | Bi | 208.98040(1) |
| 84 | Polonio | Po | [208.9824] |
| 85 | Astato | At | [209.9871] |
| 86 | Radon | Rn | [222.0176] |
| 87 | Frantzio | Fr | [223.0197] |
| 88 | Radio | Ra | [226.0254] |
| 89 | Aktinio | Ac | [227.0278] |
| 90 | Torio | Th | 232.03806(2) |
| 91 | Protoaktinio | Pa | 231.03588(2) |
| 92 | Uranio | U | 238.02891(3) |
| 93 | Neptunio | Np | [237.0482] |
| 94 | Plutonio | Pu | [244.0642] |
| 95 | Amerizio | Am | [243.0614] |
| 96 | Kurio | Cm | [247.0703] |
| 97 | Berkelio | Bk | [247.0703] |
| 98 | Kalifornio | Cf | [251.0796] |
| 99 | Einsteinio | Es | [252.0829] |
| 100 | Fermio | Fm | [257.0951] |
| 101 | Mendelebio | Md | [258.0986] |
| 102 | Nobelio | No | [259.1009] |
| 103 | Lawrentzio | Lr | [260.1053] |
| 104 | Rutherfordio | Rf | [261.1087] |
| 105 | Dubnio | Db | [262.1138] |
| 106 | Seaborgio | Sg | [263.1182] |
| 107 | Bohrio | Bh | [262.1229] |
| 108 | Hassio | Hs | [265] |
| 109 | Meitnerio | Mt | [266] |
| 110 | Darmstadtio | Ds | [269] |
| 111 | Roentgenio | Rg | [272] |
| 112 | Kopernizio | Cn | [285] |
| 113 | Nihonio | Nh | [284] |
| 114 | Flevorio | Fl | [289] |
| 115 | Moskovio | Mc | [288] |
| 116 | Livermorio | Lv | [292] |
| 117 | Teneso | Ts | |
| 118 | Oganeson | Og |
Erreferentziak
Kanpo estekak
Datuak: Q101395
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