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Melting point: 1800 K (1500 °C ... Fermium is a synthetic chemical element; ... a new component was isolated emitting high-energy α-particles (7.1 ...
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.
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Atomic number (Z): 100: Group: f-block groups (no number): Period: period 7: Block f-block Electron configuration [] 5f 12 7sElectrons per shell: 2, 8, 18, 32, 30, 8 ...
Crystal structures of elements at their melting points at atmospheric pressure 1 H 13 K Mg: 2 He * 3 Li 453 K W: 4 Be 1560 K W: 5 B 2349 K β-B: 6 C 3800 K g-C: 7 N 63 K β-N: 8 O 54 K γ-O: 9 F 53 K γ-O: 10 Ne 24 K Cu: 11 Na 370 K W: 12 Mg 923 K Mg: 13 Al 933 K Cu: 14 Si 1687 K d-C: 15 P 883 K b-P: 16 S 393 K β-S: 17 Cl 171 K Cl: 18 Ar 83 K ...
However the group 12 metals have much lower melting and boiling points since their full d subshells prevent d–d bonding, which again tends to differentiate them from the accepted transition metals. Mercury has a melting point of −38.83 °C (−37.89 °F) and is a liquid at room temperature.
This small radius and high weight cause it to be expected to have an extremely high density of around 46 g·cm −3, over twice that of osmium, currently the most dense element known, at 22.61 g·cm −3; element 164 should be the second most dense element in the first 172 elements in the periodic table, with only its neighbor unhextrium ...
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.