Search results
Results From The WOW.Com Content Network
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.
Many bismuth alloys have low melting points and are found in specialty applications such as solders. Many automatic sprinklers, electric fuses, and safety devices in fire detection and suppression systems contain the eutectic In 19.1 -Cd 5.3 -Pb 22.6 -Sn 8.3 -Bi 44.7 alloy that melts at 47 °C (117 °F) [ 19 ] This is a convenient temperature ...
It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic table) it occurs naturally only in combination with other elements and almost always has an oxidation state of +2.
Palladium has the appearance of a soft silver-white metal that resembles platinum. It is the least dense and has the lowest melting point of the platinum group metals. It is soft and ductile when annealed and is greatly increased in strength and hardness when cold-worked.
The melting point of lead—at 327.5 °C (621.5 °F) [33] —is very low compared to most metals. [ 24 ] [ f ] Its boiling point of 1749 °C (3180 °F) [ 33 ] is the lowest among the carbon-group elements.
Potassium is the second least dense metal after lithium. It is a soft solid with a low melting point, and can be easily cut with a knife. Potassium is silvery in appearance, but it begins to tarnish toward gray immediately on exposure to air. [21]
(Europium and ytterbium have lower melting points because they delocalise about two electrons per atom rather than three.) [24] This chemical availability of f orbitals justifies lanthanum's placement in the f-block despite its anomalous ground-state configuration [25] [26] (which is merely the result of strong interelectronic repulsion making ...
A silvery-colored metal, tin is soft enough to be cut with little force, [13] and a bar of tin can be bent by hand with little effort. When bent, the so-called "tin cry" can be heard as a result of twinning in tin crystals. [14] Tin is a post-transition metal in group 14 of the periodic table of elements.