yttrium chemical properties

Posted on August 13, 2020 at 1:06 pm by / tornado sounds 1 hour / Cover story band net

Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... If we talk about chemical properties or reactivity, then it has the same reaction order as lanthanides, it has several other similarities as well such as almost the same size, similar behaviour, similar atomic radius, close atomic number etc.

Get kids back-to-school ready with Expedition: Learn!

An atom of an element in a compound will have a positive oxidation state if it has had electrons removed. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead.Francium is an alkali metal, that has one valence electron. …second series includes the elements yttrium (symbol Y, atomic number 39) to cadmium (symbol Cd, atomic number 48).

It can also enter the environment when household equipment is thrown away. The yttrium atom has a radius of 177.6.pm and its Van der Waals radius is 200.pm.

This article was most recently revised and updated by

The bulk properties of astatine are not known with any certainty.Radon is a radioactive, colorless, odorless, tasteless noble gas. New York: TAB Books. It is quite stable in air; rapid oxidation begins above approximately 450 °C (840 °F), resulting in Y2O3. Yttrium is fairly stable in air, because it is proteced by the formation by the formation of a stable oxide film on its surface, but oxidizes readily when heated.
Pure germanium is a semiconductor with an appearance similar to elemental silicon.Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal.

In its elemental form, CAS 7440-65-5, Yttrium has a silvery white appearance. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen.Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years.

Neptunium is the first transuranic element.Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized.Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas.Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide.Berkelium is a member of the actinide and transuranium element series.Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). In the periodic table, potassium is one of the alkali metals. Holmium is a relatively soft and malleable silvery-white metal.Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Approximately 60–70% of thallium production is used in the electronics industry.Lead is a heavy metal that is denser than most common materials.

Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8.

The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.Nickel is a silvery-white lustrous metal with a slight golden tinge. Gold is a transition metal and a group 11 element. If you continue to use this site we will assume that you are happy with it.