Technetium (Tc)
"The Ghostly Healer, this element is a master of fleeting transformations, vanishing from nature but appearing just in time to light up the hidden secrets of your body."
A memorable persona to anchor Tc in your mind.
11.5
Grams per cm³
2157
Celsius (°C)
209
Radius (pm)
Daily Life Link
The invisible star of countless hospital diagnostic scans, helping doctors see inside you.
Discovery & History
Year Discovered
1937
Discovered By
Carlo Perrier & Emilio Segrè
Origin of Name
"The name is derived from the Greek ''tekhnetos'' meaning artificial."
Technical Properties
Atomic Mass
[98] u
Standard State
solid
Boiling Point
4262°C
Electron Configuration
[Kr] 4d55s2
1st Ionization Energy
7.28 eV
Electron Affinity
N/A
Oxidation States
"A lustrous, silvery-gray metal that glows with an inner, invisible power."
Did You Know?
The Ultimate Ghost Element: Technetium holds the incredible title of being the *lightest* element in the entire periodic table that has absolutely NO stable isotopes. It's totally radioactive, always changing!
Born in a Lab, Not in Nature: For decades, Technetium was considered the first element *created* by humans, not discovered naturally on Earth. It literally had to be synthesized before it was 'found'!
Named for Being 'Artificial': Its name comes from the Greek word 'technetos,' meaning 'artificial.' How cool is that – an element named after how it was made!
Your Body's Inner Flashlight: Technetium-99m is a superstar in medicine, used in around 80% of all diagnostic scans globally – think bone, heart, brain, and tumor imaging! It helps doctors see inside you!