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Element Revision Sheet

Bohrium (Bh)

Transition Metals Block D Group 7 • Period 7
Superhero Identity

"The Phantom Flash: a super-heavyweight champion that appears in a blinding burst of energy, too powerful to maintain its form, vanishing back into the quantum shadows!"

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

As elusive as catching a glimpse of a shooting star, but even faster and more difficult to pin down!

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

"A theoretically metallic solid, but so fleeting it's only ever been detected by its radioactive decay products."

Did You Know?

1

Born in a Lab: Bohrium is a truly synthetic element, meaning scientists create it in powerful particle accelerators; it doesn't naturally exist anywhere on Earth!

2

Number 107: This super-heavy element proudly holds atomic number 107, packing a whopping 107 protons in its nucleus.

3

Named After a Legend: Its name honors the brilliant Danish physicist Niels Bohr, a pioneer in understanding atomic structure and quantum theory.

4

A Blink and You'll Miss It: Bohrium has an incredibly short lifespan! Its most stable known isotope, Bh-270, lasts only about 61 seconds, while others vanish in mere milliseconds.

Ready to Test Your Knowledge?