Uncombined hydrogen is found in atmosphere in small concentration.
These metals are very unreactive and are "noble". This basically means that they would not react with any other elements found in the earth's crust.
It is very dangerous to humans.
Hydrogen is naturally found in the gaseous form.
In 1776 it founder henry
The most common form of hydrogen on the earth is water - H2O.
is hydrogen uncombined in nature
hydrogen
Hydrogen is a colorless gas of low density that is rare found uncombined since it is extremely flammable.
They are very reactive.They cannot be found uncombined.
Uncombined
Halogens are found in nature as a monatomic species ex. Hydrogen, Nitrogen, Oxygen, Flourine, Chlorine, Bromine, ect.
Sodium is very reactive and this is the cause for which there doesn't exist uncombined in nature.
no
Hydrogen is an extremely abundant element and can be found just about everywhere. In its diatomic elemental form, hydrogen can be found in the atmosphere as well as in stars. However, it is a moderately reactive element and can be found in molecules ranging from water (hydrogen dioxide) to nucleic acids.
No
yes :)
Yes