What is 77 on the periodic table?

What is 77 on the periodic table?

Iridium, with atomic number 77 and two stable isotopes, 191 and 193, turns up in an alloy with platinum in the standard bar and weight used for many years to define the metre and the kilogramme.

What is the name of 77 element?


atomic number 77
atomic weight 192.2
melting point 2,410° C (4,370° F)
boiling point 4,527° C (8,181° F)
specific gravity 22.4 (20° C)

Where is thulium found?

The element is never found in nature in pure form but it is found in small quantities in minerals with other rare earths. It is principally extracted from monazite, which contains about 0.007% of thulium and bastnasite (about 0.0008%). The chief ores are in China, US, Brazil, India, Sri lanka and Australia.

Where can germanium be found?

Germanium is primarily mined with zinc ore as well as with argyrodite, germanite, and coal according to the Los Alamos National Laboratory. According to Chemistry Explained, germanium is mined in Alaska, Tennessee, China, the United Kingdom, Ukraine, Russia and Belgium.

What element has the atomic number 76?

Osmium – Element information, properties and uses | Periodic Table.

What is element 78 on the periodic table?

Platinum, Pt, is an element in group 10, period 6, on the periodic table with the atomic number 78. Platinum is a heavy, malleable, ductile, grey-white transition metal, used in many ways. Platinum; Pt; a silvery white metal when pure.

Does the human body use Iridium?

Iridium has no biological role.

What is boron on the periodic table?

boron (B), chemical element, semimetal of main Group 13 (IIIa, or boron group) of the periodic table, essential to plant growth and of wide industrial application.

What is 70 on the periodic table?

Ytterbium is a chemical element with symbol Yb and atomic number 70.

Can thulium be cut with a knife?

Thulium metal is soft, malleable and ductile, and is so soft that it can be cut with a knife. The first compound containing Thulium was discovered and named by Swedish Chemist Per Teodor Cleve (1840 – 1905) in 1879.

What is GE on the periodic table?

germanium (Ge), a chemical element between silicon and tin in Group 14 (IVa) of the periodic table, a silvery-gray metalloid, intermediate in properties between the metals and the nonmetals.

How many electron shells does GE have?

Germanium is in the same family with the elements carbon and silicon. They all have four electrons in their outer shell. The orbital structure for germanium is 2-8-18-4.

What is element 77 of periodic table?

Element 77 of Periodic table is Iridium with atomic number 77, atomic weight 192.217. Iridium, symbol Ir, has a Face Centered Cubic structure and Silver color.

What is the atomic number of Iridium 77?

Iridium Facts Name Iridium Atomic Number 77 Atomic Symbol Ir Atomic Weight 192.217 Phase Solid

How to find iridium on periodic table?

Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 77 to find Iridium on periodic table. Another way to read periodic table and locate an element is by using group number (column) and period number (row).

What do the numbers mean on the periodic table of elements?

Here’s a look at what they mean and where to find important elements. One number you will find on all periodic tables is the atomic number for each element. This is the number of protons in the element, which defines its identity.