Wikijunior:The Elements/Manganese


Shows the position of Manganese on the periodic chart.
Manganese' symbol on the Periodic Table
A sample of manganese.

What does it look, feel, taste, or smell like?Edit

Manganese is a light gray metal resembling iron. It is a hard metal and is very brittle.

How was it discovered?Edit

It was discovered in 1774 by Johan Gahn.

Where did its name come from?Edit

Did You Know?

  • Steel made with 12% manganese was used for the Brodie Helmet worn by British soldiers in Word War I.
  • Another interesting fact.
  • Yet another interesting fact.

In ancient times, a black mineral was found in in what is now modern Greece, in an area called Magnesia. The ore was used to make glass clearer. In the 16th century, a doctor, Michele Mercati, called the ore Manganesa and later the metal isolated from it became known as manganese.

Where is it found?Edit

What are its uses?Edit

It is in steel, batteries, and ceramics. It was found in cave paintings in France. Its atomic number is 25. Maganese-53 is radioactive, with a half-life of 3.74 years (the time it takes for half of the radioactive material to be gone). It has 25 protons and 30 neutrons.

Is it dangerous?Edit

ReferencesEdit

Last modified on 12 September 2012, at 21:06