Full Profile
Fast Revision Mode
42 Mo
Element Revision Sheet

Molybdenum (Mo)

Transition Metals Block D Group 6 • Period 5
Superhero Identity

"The Unyielding Alloy-Master, Molybdenum forges the toughest metals, resisting the fiercest heats and pressures, making the world's most durable machines possible."

A memorable persona to anchor Mo in your mind.

Density

10.28

Grams per cm³

Melting Point

2622

Celsius (°C)

Atomic Radius

209

Radius (pm)

Everyday Connection

Daily Life Link

It makes your car engine stronger and your drill bits tougher!

Discovery & History

Year Discovered

1781

Discovered By

Carl Wilhelm Scheele

Origin of Name

"The name is derived from the Greek ''molybdos'' meaning lead."

Technical Properties

Atomic Mass

95.95 u

Standard State

solid

Boiling Point

4639°C

Electron Configuration

[Kr] 4d55s1

1st Ionization Energy

7.092 eV

Electron Affinity

N/A

Oxidation States

[+6]
Appearance

"A sleek, silvery-white metal, tough enough to take a punch and still gleam."

Did You Know?

1

Molybdenum boasts the third-highest melting point of *all* elements (a scorching 2,623°C!), making it a true heat-defying champion.

2

Add just a small amount of Molybdenum to steel, and BOOM! You get super-strong alloys resistant to insane heat and corrosion, crucial for jet engines and missile parts.

3

Its atomic number is 42 – yes, the very 'Answer to the Ultimate Question of Life, the Universe, and Everything' from Hitchhiker's Guide to the Galaxy! Mind-blown yet?

4

Believe it or not, your body needs tiny traces of Molybdenum to help enzymes do their job, like breaking down certain toxins. It's a vital, microscopic hero!

Ready to Test Your Knowledge?