Mendelevium (Md)
"Meet Mendelevium, the brilliant tribute! This atom-sized genius is a meticulously crafted elemental scholar, carrying the legacy of the Periodic Table's creator with every fleeting moment."
A memorable persona to anchor Md in your mind.
Synthetic
Grams per cm³
827
Celsius (°C)
N/A
Radius (pm)
Daily Life Link
Like trying to count individual grains of sand on the world's biggest beach, but each grain is a super-special, fleeting atom.
Discovery & History
Year Discovered
1955
Discovered By
Albert Ghiorso and colleagues
Origin of Name
"Mendelevium is named for Dmitri Mendeleev who produced one of the first periodic tables."
Technical Properties
Atomic Mass
[258] u
Standard State
solid
Boiling Point
N/A
Electron Configuration
[Rn] 5f137s2
1st Ionization Energy
6.58 eV
Electron Affinity
N/A
Oxidation States
"A whisper-thin, silvery metallic sheen, if you could ever gather enough atoms to even glimpse it."
Did You Know?
A Hero's Tribute: Mendelevium is named in honor of Dmitri Mendeleev, the legendary Russian chemist who created the first periodic table. Talk about a permanent shout-out!
Lab-Born Legend: Forget natural deposits! Every single atom of Mendelevium ever detected was painstakingly created by humans in a high-tech lab.
Atom-by-Atom Adventure: Producing Mendelevium isn't like mining gold; scientists literally craft it one atom at a time by smashing other elements together.
Blink and You'll Miss It: Its longest-lived isotope, Mendelevium-258, only has a half-life of about 51 days. Most isotopes vanish in minutes or even seconds!