Dubnium

Dubnium is a synthetic chemical element with the symbol Db and atomic number 105. It is a highly radioactive metal that is difficult to produce in macroscopic quantities. Dubnium is named after the town of Dubna in Russia, where it was first synthesized.

Overview

English Name:

Dubnium

Latin Name:

Dubnium

Year Discovered:

1967

Discovered By:

Georgy Flerov and team

Group:

Period:

Electrons:

105

CAS Number:

54137-58-7

Cost Per 100 Grams:

N/A

Atomic Properties

Electronic Configuration:

[Rn] 5f¹⁴ 6d³ 7s²

Ion Charge:

Ionisation Energies:

N/A

Atomic Radius (Empirical):

N/A

Atomic Radius (Calculated):

N/A

Covalent Radius:

N/A

Van Der Waals Radius:

N/A

Ionisation Potential of An Atom:

N/A

Electrons Per Layer:

2, 8, 18, 32, 32, 10, 3

Atomic Multiplicities Of The Gas:

N/A

Atomic Weight:

262

Oxidation States

Reactivity

Electron Affinity:

N/A

Valence:

Electronegativity:

N/A

Thermal Properties

Melting Point:

N/A

Boiling Point:

N/A

Critical Point:

Pressure: N/A

Temperature: N/A

Thermal Conductivity:

N/A

Heat Capacity:

Specific: N/A

Molar: N/A

Thermal Coefficient:

N/A

Enthalpy:

Fusion: N/A

Vaporisation: N/A

Atomization: N/A

Curie Temperature:

N/A

Neel Temperature:

N/A

Superconductivity Point:

N/A

Physical and Chemical Properties

State of matter (25° C/ 77°F):

Solid

Density:

Solid: N/A

Molar Volume (Vmol):

N/A

Speed of Sound (Vs):

N/A

Hardness:

N/A

Bulk Modulus (K):

N/A

Shear Modulus (G):

N/A

Young's Modulus (E):

N/A

Color:

Unknown

Brinell Hardness (MPa):

N/A

Liquid Density (Kg/m^3):

N/A

Hardness of Mohs:

N/A

Refractive Index:

N/A

Vickers Hardness (MPa):

N/A

Crystal Structure:

N/A

Electromagnetic Properties

Electrical Type:

N/A

Resistivity:

N/A

Magnetic Type:

N/A

Superconductivity:

N/A

Volume Magnetic Susceptibility:

N/A

Mass Magnetic Susceptibility:

N/A

Molar Mass Susceptibility:

N/A

Electrical Conductivity:

N/A

Mass (γ_mass):

4.5 × 10^-22 kg

Mass (γ_mol):

1.3 × 10^-21 mol

Volume (γ_vol):

N/A

Grid Parameters

Crystal Structure:

N/A

Grid Parameters:

N/A

Attitude:

N/A

Debye Temperature:

N/A

Safety and Precautions

Signal Word:

Danger

Hazard Statements:

H300, H350, H410

Precautionary Statements:

P201, P202, P260, P262, P264, P270, P273, P281, P301 + P310, P308 + P313, P405, P501

RTECS Number:

N/A

Risk:

Flammability: N/A
Health Risk: Highly toxic, carcinogenic
Reactivity: N/A
Specific Risk: Radioactive

Importance

Main sources:

Produced artificially in nuclear reactors and particle accelerators

Main Usage:

Nuclear research

Nuclear Properties

Radioactive:

Yes

Isotopes:

Db-262, Db-263, Db-264, Db-265

Neutron Cross Sectional:

N/A

Half Life (s):

34 s (Db-262)

Lifetime:

Radioactive

Prevalence

Universe:

N/A

Sun:

N/A

Oceans:

N/A

Humans:

N/A

Earth's Crust:

N/A

Meteorites:

N/A