INTRODUCTION
Dubnium is an extremely rare, unstable chemical element. The large number of particles in the nucleus makes the atom unstable and causes the atom to split apart into smaller components soon after it is created.
Dubnium belongs to same Group, which contains the naturally occurring metals vanadium, niobium, and tantalum. It deviates from the above elements and appears to share complex properties of the elements plutonium and protactinium instead.
BASIC INFORMATIONS
- Atomic Number
- 105
- Atomic Mass
- 268
- Ionic radius
- N/A
- Ionization energy
- N/A
- Electronic config
- 2,8,18,32,32,11,2
- Principal Valency
- +2
- Density g/cm³
- N/A
- Melting point °C
- N/A
- Boiling point °C
- N/A
- Type of Element
- Metal
- Electronegativity
- N/A
- Element Category
- Vanadium Group
- Appearance
- N/A
- Block
- d-block
- Period
- 7
- Group
- 4
- No of Isotopes
- 12
- Occurrence
- Artificially Made
- Abundance in ppm
- Nil
- Year of Discovery
- 1970
EXTRACTION
It is obtain by electrolysis of its fused salts or reducing its halides with calcium
OXIDATION STATES
+5,+4
MAJOR SOURCE
High-energy bombardment of californium
HALF LIFE
Dubnium-260 = 3.0 seconds, Dubnium-262 = 68 seconds
ECONOMIC IMPORTANCE
* Due to its short life span, Little is known about the element, so therefore; it does not have any industrial use, presently.
