Neptune was discovered on September 23, 1846. They discovered it while they were studying Uranus.
helium in a jar diff from helium atom
There is no word equation, except that helium will exist as liquid phase in liquid helium
The abbreviation for gas helium is He.
Helium doesn't have an abbrevaition but its chemical symbol is He.
In 1868 by Pierre Janssen.
it was discoved in July 19,1799
Howard Carter discoved tutu carmoon
europeans
greek
j cole
who discoved endosulphan
by a bunch of baboons
no one
Vitus Bering.
it has always been known
Alessandro Volta in 1800