Chemical properties of Yttrium - Health effects of yttrium - Environmental effects of yttrium
| Atomic number | 39 |
|---|
| Density | 4.47 g.cm-3 at 20°C |
| Melting point | 1500 °C |
| Boiling point | 3336 °C |
| Vanderwaals radius | 0.106 nm (+3) |
What is the symbol for yttrium?
Some scientists believe the group 12 elements (zinc, cadmium, and mercury) should be included as main group elements because they share common properties with the elements to the right of them on the table. A few scientists include the group 3 elements (scandium and yttrium) and sometimes the lanthanides and actinides.
Yttrium is often used as an additive in alloys. It increases the strength of aluminium and magnesium alloys. It is also used in the making of microwave filters for radar and has been used as a catalyst in ethene polymerisation. Yttrium-aluminium garnet (YAG) is used in lasers that can cut through metals.
Scandium and yttrium are considered rare earth elements since they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties.
Fun fact about Yttrium: Yttrium is named after the Swedish village of Ytterby, which has a nearby quarry containing quartz and feldspar, among other minerals. Chemical symbol: Y. Atomic number: 39.
It's a soft metal that is silvery in color when pure. It's also very lustrous, or shiny. Yttrium is a good conductor of electricity and heat, and it's easy to mold into different shapes.
Medical definitions for yttriumA silvery, ductile, rare-earth element used in various alloys. Atomic number 39.
Samarium is used to dope calcium chloride crystals for use in optical lasers. It is also used in infrared absorbing glass and as a neutron absorber in nuclear reactors. Samarium oxide finds specialised use in glass and ceramics.
What is Samarium found in?
Although classified as a rare-earth element, samarium is the 40th most abundant element in the Earth's crust and is more common than metals such as tin.
Who found samarium?
Paul-Émile Lecoq de Boisbaudran
Eugène-Anatole Demarçay
The duelling metal-insulator properties were observed throughout the interior of the material, called samarium hexaboride (SmB6). There are other recently-discovered materials which behave both as a conductor and an insulator, but they are structured like a sandwich, so the surface behaves differently from the bulk.
What is the chemical symbol for bromine?
Tin (Sn), a chemical element belonging to the carbon family, Group 14 (IVa) of the periodic table. It is a soft, silvery white metal with a bluish tinge, known to the ancients in bronze, an alloy with copper. Tin is widely used for plating steel cans used as food containers, in metals used for bearings, and in solder.
Transition metals tend to be strong but pliable, which is why some of them, such as copper and nickel, are widely used for wires. Yttrium wires and rods are also used in electronics and solar energy. Yttrium is also used in lasers, ceramics, camera lenses, and dozens of other items.
The average monthly fob price for 99.999pc yttrium oxide was up by 14pc to $3,092-3,694/t, while fob prices for 99.9pc yttrium metal were $34.00-35.50/kg.
The metals are expensive, making the find extremely valuable, with some estimates putting the value of the island's rare earth oxide alone at approximately $500 billion. Yttrium is currently worth $3,400 per pound, europium costs $20,000 per 100 grams and terbium sells for $1,800 per 100 grams.
The metal can be isolated by reduction of the fluoride with calcium metal. Isotopes: Yttrium has 25 isotopes whose half-lives are known, with mass numbers 79 to 103. Naturally occurring yttrium consists of its one stable isotope, 89Y.
