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35 Br
Element Revision Sheet

Bromine (Br)

Halogens Block P Group 17 • Period 4
Superhero Identity

"The Fiery Suppressor, Bromine is a liquid legend, extinguishing dangerous flames and purifying the unclean. But beware its potent, pungent power!"

A memorable persona to anchor Br in your mind.

Density

3.12

Grams per cm³

Melting Point

-7.2

Celsius (°C)

Atomic Radius

183

Radius (pm)

Everyday Connection

Daily Life Link

Think of the fire-resistant plastics in your electronics, silently guarding them from heat!

Discovery & History

Year Discovered

1826

Discovered By

Antoine Jérôme Balard

Origin of Name

"The name comes from the Greek ''bromos'' meaning stench."

Technical Properties

Atomic Mass

79.904 u

Standard State

liquid

Boiling Point

58.8°C

Electron Configuration

[Ar] 3d104s24p5

1st Ionization Energy

11.814 eV

Electron Affinity

N/A

Oxidation States

[+5 +1 -1]
Appearance

"A sinister, shimmering reddish-brown liquid that instantly gives off an orange-brown vapor."

Did You Know?

1

Bromine is one of only two elements on the entire Periodic Table that are liquid at room temperature! (Can you name the other? Hint: it's silvery!).

2

Its name comes from the Greek word 'bromos,' meaning 'stench' or 'foul smell' – a very fitting name for its pungent, bleach-like odor!

3

This element is a crucial member of the notorious Halogen family (Group 17), known for being super reactive and always looking to bond with other elements.

4

Bromine compounds are unsung heroes in flame retardants, making plastics, textiles, and electronics much harder to catch fire and saving countless lives.

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