Full Profile
Fast Revision Mode
107 Bh
Element Revision Sheet

Bohrium (Bh)

Transition Metals Block D Group 7 • Period 7
Superhero Identity

"The Quantum Leaper, a hero named for the physicist who described the quantum model of the atom."

A memorable persona to anchor Bh in your mind.

Density

37.1

Grams per cm³

Melting Point

N/A

Celsius (°C)

Atomic Radius

N/A

Radius (pm)

Everyday Connection

Daily Life Link

Bohrium has no everyday connection, used only in research.

Discovery & History

Year Discovered

1981

Discovered By

GSI Helmholtz Centre for Heavy Ion Research

Origin of Name

"Bohrium is named for the Danish atomic physicist Niels Bohr"

Technical Properties

Atomic Mass

[270] u

Standard State

solid

Boiling Point

N/A

Electron Configuration

[Rn] 5f146d57s2

1st Ionization Energy

N/A

Electron Affinity

N/A

Oxidation States

[7 5 4 3]
Appearance

"Bohrium is a synthetic, highly radioactive metal."

Did You Know?

1

It is named in honor of Niels Bohr, the Danish physicist who made foundational contributions to understanding atomic structure and quantum theory.

2

The German team at GSI that discovered it suggested the name 'nielsbohrium', but IUPAC eventually shortened it to 'bohrium'.

3

Its most stable isotope has a half-life of about 61 seconds.

4

It is a member of Group 7 of the periodic table and is expected to have properties similar to rhenium.

Ready to Test Your Knowledge?