Information valid for Unp-262 unless otherwise noted

Unnilpentium Hahnium, Dubnium

Basic Information

Symbol: Unp, Ha, Db
Atomic Number: 105
Mass: (262.0)
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 105
Number of Neutrons: 157
Classification: Transition Metal
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown
IUPAC Name: Joliotium (Jl)
ACS Name: Hahnium (Ha)
Due to the naming dispute over this element, this site will use the IUPAC Systematic Naming Scheme

Atomic Structure

Number of Energy Levels: 7 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 32 Fifth Energy Level: 32 Sixth Energy Level: 11 Seventh Energy Level: 2

Isotopes

Facts

Date of Discovery: 1970
Discoverer: A. Ghiorso
Name Origin: Un (one) nil (zero) pent (five) ium
Uses: No uses known
Obtained From: Man-made