#IS IRIDIUM A METAL FULL#

Iridium has two known stable isotopes which are 191Ir and 193Ir. Iridium has 9 valence electrons so there are many oxidation states that can occur. It can also react with some molten salts at this temperature like sodium cyanide and potassium cyanide. At higher temperatures, closer to its melting point, iridium can react with oxygen and halogens because their reactivity makes up for how unreactive iridium is. This also makes it very resistant to air, water, and acids. Because there is less room for electrons to join, iridium is more unreactive. Iridium has more complex outer electrons shells because there are more electrons, but both the 6s and 4f shells are full, and the 5d shell is only missing 3 electrons.

#IS IRIDIUM A METAL FULL#

It’s considered one the noble metals, named after the noble gases which are famously unreactive because of a full outer electron shell. Iridium is the most corrosion-resistant element known in the periodic table. The metal needs to be worked at high temperatures otherwise it will break instead of bend. It is also quite brittle when it is cold and nowhere near it’s melting point. It is so dense that a cubic centimeter of iridium weighs 22.65 times as much as a cubic centimeter of water. Iridium is the densest element of the periodic table. “Iridium-2” by GrrlScientist is licensed under CC BY 2.0 Physical Properties

Iridium is not toxic but can cause eye and throat irritation if humans are exposed to it in dust form. Iridium is quite stable, especially at lower temperatures. The platinum group metals all tend to be relatively unreactive and share physical and chemical properties. Like most transition metals, it is a good conductor of electricity and heat. It is the most corrosive resistant metal of the periodic table and the densest. Iridium is a very brittle, silvery metal that can be found in its pure form, or in combination with other platinum group metals in nature. It is also part of the platinum family within the transition metals and they are known for being highly resistant to tarnish. Iridium is also classified as a transition metal. It goes by this name because many of the salts formed with iridium are highly colored, like a rainbow. Iridium gets its name from the Latin word iris which means rainbow. Because its addition makes metals harder, it’s used to make several different kinds of heavy-duty equipment. In fact, it is so hard, that its most common use is as a hardening agent in many metal alloys, especially platinum. It is a very hard, brittle, silvery-white metal. Iridium is a transition metal that is the 77 th element of the periodic table.

Is iridium a metal