Hydrogen resembles alkali metals in many aspects but differs in
H-like alkali metals forms hydrides
Eg : H - Cl
Na - Cl
H-like alakalimetals forms oxides
Eg : H2O
Na2O
H-like alakali metals forms sulphides
Eg : H2S
Na2S
→ H - 1s a non-metal
Where as alkali metals shows metallic character.