Table of Contents
- 1 Which element belongs to group 7 Period 2?
- 2 What is the atomic number 75?
- 3 Is Group 7 and 17 the same?
- 4 What is the name given to Group 7?
- 5 Is Group 8 elements unreactive?
- 6 How many groups are there?
- 7 What are the physical properties of rhenium metal?
- 8 Who was the first person to discover rhenium?
Which element belongs to group 7 Period 2?
Chemistry
| Z | Element | No. of electrons/shell |
|---|---|---|
| 25 | manganese | 2, 8, 13, 2 |
| 43 | technetium | 2, 8, 18, 13, 2 |
| 75 | rhenium | 2, 8, 18, 32, 13, 2 |
| 107 | bohrium | 2, 8, 18, 32, 32, 13, 2 |
What is the atomic number 75?
Rhenium
Rhenium is element 75 in the periodic table and in many ways a rather unusual element.
What is Group 8 called?
iron group
Group 8 is a group (column) of chemical elements in the periodic table. It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs)….Group 8 element.
| IUPAC group number | 8 |
|---|---|
| Name by element | iron group |
| CAS group number (US, pattern A-B-A) | part of VIIIB |
| old IUPAC number (Europe, pattern A-B) | part of VIII |
What is the family name for Group 12?
zinc family
Group names
| New IUPAC name | Old IUPAC (Europe) | Name by element |
|---|---|---|
| Group 12 | IIB | zinc family |
| Group 13 | IIIB | boron family |
| Group 14 | IVB | carbon family |
| Group 15 | VB | nitrogen family |
Is Group 7 and 17 the same?
Group 7 (IUPAC group 17) is a vertical column on the right of the periodic table . The elements in group 7 are non-metals called the halogens .
What is the name given to Group 7?
the halogens
The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table . Chlorine, bromine and iodine are the three common Group 7 elements.
Is rhenium a rare Earth?
Rhenium is the last stable metal to be discovered and it’s one of the rarest elements on earth. It features a high melting point and is extremely heat and wear resistant.
What has an atomic number of 74?
Tungsten
Tungsten is a chemical element with symbol W and atomic number 74. Classified as a transition metal, Tungsten is a solid at room temperature.
Is Group 8 elements unreactive?
Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
How many groups are there?
18
The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.
What is the name of group 18?
Noble gas
Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
What is the name of group 17?
halogen
halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
What are the physical properties of rhenium metal?
Physical properties. Rhenium is a ductile, malleable, silvery metal. Ductile means capable of being drawn into thin wires. Malleable means capable of being hammered into thin sheets. It has a density of 21.02 grams per cubic centimeter, a melting point of 3,180°C (5,760°F), and a boiling point of 5,630°C (10,170°F).
Who was the first person to discover rhenium?
Rhenium (Re), chemical element, a very rare metal of Group 7 (VIIb) of the periodic table and one of the densest elements. Predicted by the Russian chemist Dmitry Ivanovich Mendeleyev (1869) as chemically related to manganese, rhenium was discovered (1925) by the German chemists Ida and Walter Noddack and Otto Carl Berg.
Where does rhenium come from in the United States?
About a third of all rhenium used in the United States comes from copper and molybdenum ores in the Western states. It is obtained during the process of copper mining. Two-thirds are imported from other countries, primarily Chile, Germany, and the United Kingdom.
How is rhenium related to manganese and other elements?
Rhenium. Predicted by the Russian chemist Dmitry Ivanovich Mendeleyev (1869) as chemically related to manganese, rhenium was discovered (1925) by the German chemists Ida and Walter Noddack and Otto Carl Berg. The metal and its alloys have found limited application as turbine blades in fighter-jet engines, fountain pen points,…