Like alkali metals, hydrogen also forms oxides, halides and sulphides.
Hydrogen is the smallest and the lightest of all elements having atomic number 1 and atomic weight of 1.008. It is mostly found in the form of a gas and is colourless, odourless but flammable.
Hydrogen forms oxides, halides and sulphides
Hydrogen forms oxides, halides and sulphides due to the following reasons
- Hydrogen resembles I A group Alkali metals and VII-A group halogens.
- Both the alkali metals and hydrogen have one electron in their valence shell.
- Hydrogen and elements of the I A group shows the same outer configuration ns1
- Halides of hydrogen undergo ionization in an aqueous solution, similar to alkali metal halides.
- Hydrogen donates its outer electron to form oxides, halides and sulphides.