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The Element Dubnium

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Definition of the Dubnium Element
An artificially produced radioactive element whose most long-lived isotopes have mass numbers of 258, 261, 262, and 263 with half-lives of 4.2, 1.8. 34, and 30 seconds, respectively. As Dubnium is so unstable, any amount formed would decompose to other elements so quickly that there’s no reason to study its effects on human health. The Atomic Number of this element is 105 and the Element Symbol is Db.

The Properties of the Dubnium Element
Symbol of Element : Db
Atomic Number : 105
Atomic Mass: (262.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons : 105
Number of Neutrons : 157
Crystal Structure: Unknown
Density @ Unknown
Color : Unknown

Origin / Meaning of the name Dubnium
The name Dubnium originates from its place of origin in Dubna, in Russia where it was was first synthesized at the Joint Nuclear Research Institute in 1964

Periodic Table Group and Classification of the of the Dubnium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Dubnium is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

Facts about the History and the Discovery of the Dubnium Element
Dubnium was first synthesized at the Joint Nuclear Research Institute at Dubna, in Russia, in 1964 - leading to the name Dubnium (Db).
Also known as Rutherfordium which was synthesized by Albert Ghiorso in 1969 at the University of California and named in honor of Ernest Rutherford, a New Zealand chemist and physicist.
Also named as Kurchatovium (Ku) in honor of Igor Vasilevich Kurchatov (1903-1960) the former Head of Soviet Nuclear Research
IUPAC - the International Union of Pure and Applied Chemistry adopted Unnilpentium (Unp) as a temporary name
Also known as Joliotium (Jl) and Hahnium (Ha) after the  German scientist Otto Hahn

Occurrence of the Dubnium Element
Man-made

Abundances of the element in different environments
% in Universe N/A
% in Sun None
% in Meteorites None
% in Earth's Crust None
% in Oceans None
% in Humans None

Associated Uses of Dubnium
No known uses

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