Ir comes from the first two characters in iridium.
Besides symbol I was already used to represent iodine.
Sulfur symbol is S; iridium symbol is Ir.
the symbol for iridium is Ir with an atomic number of 77
Ir
Iridium: Ir, atom number 77, mass 192.2 a.m.u.
its iridium , and t is the chemical element with atomic number 77, and is represented by the symbol Ir.
Tungsten has a melting point of 3422 degrees Celsius.
Ir is the chemical symbol for the element iridium. It is a dense, corrosion-resistant metal with a silver appearance. Iridium is commonly used in various industrial applications, such as in electronics and catalytic converters.
The atomic number of iridium is 77. Its symbol is Ir. It is placed in group-9 and period -6 in the periodic table.
Ir(Iridium) is in Group 9.
The symbol for the element Iridium is "Ir". It comes from the Greek word iris that means rainbow.
Iridium is a metal element, atomic number 77. There are two stable isotopes, 191 and 193. Symbol for Iridium is Ir. It is one of the densest elements known. Much more info in Wikipedia entry for 'Iridium'. No cost info given.
The seventy-seventh element in the periodic table is Iridium, with the symbol Ir and atomic number 77. Iridium is a dense, corrosion-resistant metal often used in the production of electrical contacts and spark plugs.