Element Family
Actinide
Post-Transition
Space Group Name
Fm_ 3m
C12/m1
Interesting Facts
Actinium glows in the dark due to its radioactivity.
- Bismuth metal is soluble and reacts with concentrated nitric acid.
- It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Friedrich Oskar Giesel
Claude François Geoffroy
Discovery
In 1902
In 1753
Abundance In Earth's Crust
Uses & Benefits
- Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
- Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
Industrial Uses
-
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
-
Pharmaceutical Industry
Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
Present in Human Body
No
Yes
Physical State
Solid
Solid
Color
Silvery White
Silver
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Pauling Electropositivity
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Rn] 6d1 7s2
[Xe] 4f14 5d10 6s2 6p3
Crystal Structure
Face Centered Cubic (FCC)
Rhombohedral (RHO)
Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100
RHO-Crystal-Structure-of-Bismuth.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, π/2
-
Density At Room Temperature
Density When Liquid (at m.p.)
Other Mechanical Properties
-
-
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
-
Semiconductor