What is Hydrogen?
a chemical element with chemical symbol H and atomic number 1
What is its weight?
7000100794000000000♠1.00794 u
How much is in the air?
unknown
is it toxic?
no
When did it first occur?
during the recombination epoch
Does it have a taste?
no
Can it be found in liqud?
yes
Is it in space?
yes
Who founded it?
Schrödinger
When did he find it?
during the recombination epoch.