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Periodic Table of Elements: Dubnium – Db (EnvironmentalChemistry.com)
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Periodic Table of ElementsElement Dubnium – DbComprehensive data on the chemical element Dubnium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Dubnium.
Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one studies.
Using the "Periodic Table of Elements Quick Navigation" graphic at the bottom of the sidebar menu, one can quickly jump from chemical element to chemical element.
Dubnium Menu
Dubnium Page One
Overview of Dubnium
Dubnium's Name in Other Languages
Atomic Structure of Dubnium
Chemical Properties of Dubnium
Physical Properties of Dubnium
Regulatory / Health
Who/When/Where/How
Dubnium Page Two
Nuclides / Isotopes
Potential Parent Nuclides
Overview of Dubnium
Atomic Number:105
Group: 5
Period: 7
Series: Transactinides
Dubnium's Name in Other LanguagesLatin: DubniumCzech: DubniumCroatian: DubnijFrench:
DubniumGerman: Dubnium - sItalian: DubniumNorwegian: DubniumPortuguese:
Russian:  Spanish: DubnioSwedish:
Atomic Structure of Dubnium
Atomic Radius:
Atomic Volume:
Covalent Radius:
Cross Section (Thermal Neutron Capture) a/barns:
Crystal Structure:
Electron Configuration:1s2
2s2p6
3s2p6d10
4s2p6d10f14
5s2p6d10f14
6s2p6d3
7s2
Electrons per Energy Level: 2,8,18,32,32,11,2
Shell Model
Ionic Radius:
Filling Orbital:
Number of Electrons (with no charge): 105
Number of Neutrons (most common/stable nuclide): 157
Number of Protons: 105
Oxidation States:
Valence Electrons:
Chemical Properties of Dubnium
Electrochemical Equivalent:
Electron Work Function:
Electronegativity: N/A (Pauling); N/A (Allrod Rochow)
Heat of Fusion: kJ/mol
Incompatibilities:
Ionization PotentialFirst:
Valence Electron Potential (-eV):
Physical Properties of Dubnium
Atomic Mass Average: 262
Boiling Point:
Coefficient of lineal thermal expansion/K-1: N/A
ConductivityElectrical: Thermal: 0.58 W/cmK
Description:Man made radioactive element.
Flammablity Class:
Freezing Point: see melting point
Heat of Vaporization: kJ/mol
Melting Point:
Physical State (at 20°C & 1atm):
Specific Heat:
Regulatory / Health
CAS Number
53850-35-4
NFPA 704Health: Fire: Reactivity: Special Hazard: Radioactive
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Dubnium Menu
Dubnium Page One
Overview of Dubnium
Dubnium's Name in Other Languages
Atomic Structure of Dubnium
Chemical Properties of Dubnium
Physical Properties of Dubnium
Regulatory / Health
Who/When/Where/How
Dubnium Page Two
Nuclides / Isotopes
Potential Parent Nuclides
Related Resources
Anatomy of the Atom
Answers many questions regarding the structure of atoms.
Molarity, Molality and Normality
Introduces stoichiometry and explains the differences between molarity, molality and normality.
Molar Mass Calculations and Javascript Calculator
Molar mass calculations are explained and there is a JavaScript calculator to aid calculations.
Chemical Database
This database focuses on the most common chemical compounds used in the home and industry.
Citing this page
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Kenneth Barbalace. Periodic Table of Elements - Dubnium – Db. EnvironmentalChemistry.com. 1995 - 2009. Accessed on-line: 1/8/2009http://EnvironmentalChemistry.com/yogi/periodic/Db.html.
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