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The periodic table and law are now a central and indispensable part of modern chemistry. The periodic table continues to evolve with the progress of science. In nature, only elements up to atomic number 94 exist; [a] to go further, it was necessary to synthesize new elements in the laboratory.
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Polonium 84 Po [209] Astatine 85 At [210] Radon 86 Rn [222] 7: Francium 87 Fr [223] Radium 88 Ra [226] Lawrencium 103 Lr [266] Rutherfordium 104 Rf [267] Dubnium 105 Db [268] Seaborgium 106 Sg [269] Bohrium 107 Bh [270] Hassium 108 Hs [271] Meitnerium 109 Mt [278] Darmstadtium 110 Ds [281] Roentgenium 111 Rg [282]
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English: An SVG periodic table of the elements, which includes name, atomic mass, electron configuration, first ionization energy, and electronegativity. Esperanto: Perioda tabelo de la elementoj, en SVG, kiu enhavas nomon, atomomason, elektronan konfiguradon, unuan jonigan energion kaj elektronegativecon.
Template: Periodic table ... Download QR code; Print/export Download as PDF; ... Po 2 14 10 4 85 At 2 14 10 5 86 Rn 2 14 10 6 [Rn] 7s: 5f: 6d: 7p: 87 Fr
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18; 1: 氢 qīng hydrogen H: 氦 hài helium He: 2: 锂 lǐ lithium Li: 铍 pí beryllium Be: 硼 péng boron B: 碳 ...
Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies.