Hydrogen Atom 1s^1

______ can be found in nature and is the most ______ element found in the universe and is a ___________ gas.

Hydrogen gas, abundant, flammable gas

Hydrogen can be located at the top of groups ____ and ____

1A and 7A

Ionic Hydrides are

when H2 form with any alkali metal or with alkaline earth metals Ca, Sr, Ba

Covalent hydrides are

when H2 covalently bonds to other atom of another element

Hydrogen bonding occurs when

hydrogen is bonded to F or O or N

Characteristics like Group 1A Alkali metals

• standard +1 oxidation number

• high IE

• high EN

• good RA

• creates covalent hydrides

• acidic

Characteristics like Group 7A Halogens

• standard -1 oxidation number

• lowest EN

• ionic hydrides

• basic

Haber Process

N2 + 3H2 → 2NH3

Fuel Cells

2H2 + O2 → 2H2O

Reduction of transition metal ores

Cu2+(aq) + H2(g) → 2H+(aq) + Cu(s)

Hydrogenation (add hydrogen to organic compounds)

C2H4 + H2 → C2H6