A particle of an element, which sits outside the nucleus.
Electron
Fact of the Day
King Edward II faced invasion in 1326, when an army from France landed in Suffolk. The army was commanded by his wife.
Quote of the Day
"Who has appointed the Germans the judges of nations?
"
~ John of Salisbury
On This Day
1787 The 'First Fleet' of 11 ships carrying convicts to Australia left England.
1888 Slavery was abolished in Brazil.