How many electrons does fermium have?
2,8,18,32,30,8,2
Fermium/Electrons per shell
What is the Valency of fermium?
+2
Fermium is an actinoid atom and a f-block element atom. A man-made radioactive actinide with atomic symbol Fm, and atomic number 100. Its known isotopes range from 244-254 and 256-258. Its valence can be +2 or +3.
What is the electron configuration of fermium?
Rn 5f12 7s2
Fermium/Electron configuration
What group is fermium in the periodic table?
Actinides
Fact box
| Group | Actinides | Melting point |
|---|---|---|
| Period | 7 | Boiling point |
| Block | f | Density (g cm−3) |
| Atomic number | 100 | Relative atomic mass |
| State at 20°C | Solid | Key isotopes |
How many protons are in fermium?
100
Fermium/Atomic number
How many protons does fermium contain?
Fermium is a synthetic element with the symbol Fm and atomic number 100. It is an actinide and the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities, although pure fermium metal has not yet been prepared.
What type of metal is fermium?
actinide
What is the symbol for fermium?
Fm
Fermium/Symbol
What is the atomic mass of fermium?
What is fermium made of?
Fermium (as the isotope fermium-255) is produced by the intense neutron irradiation of uranium-238 and was first positively identified by American chemist Albert Ghiorso and coworkers at Berkeley, California, in debris taken from the first thermonuclear (hydrogen bomb) test explosion (November 1952), “Mike,” in the …
What is fermium atomic mass?
257 u
Fermium/Atomic mass
How many neutrons are in fermium atom?