Question

Resemblance of hydrogen with halogen and alkali metals

Answer 1

with alkali metals..
just like them it can also loose an electron...forming electropositive ion...
oxidation state of hydrogen and alkali metals is same....

wuth halogens..
Can gain an electron just like them... oxidation state is sometimes similar..can form covalent bond just like them

Answer 2

I have given some properties below, so take a look:

1. Electronic configuration:
Just like halogens, hydrogen needs one electron to attain the configuration of nearest noble gas. 

2. Atomicity: 
Like halogens, hydrogen also exists in a diatomic state. The atomicity of hydrogen as well as halogens is two.

3. Electrochemical nature:
During electrolysis of LiH, CaH 2 , etc, in molten state hydrogen is evolved at the anode indicating its electronegative nature. In this respect, hydrogen shows resemblance with halogens which are also liberated at the anode during electrolysis.

4. Oxidation state: Just like halogens, hydrogen also exhibit state of -1 in some of its compounds such as metal hydrides.      

5. Combination with alkali metals.:
Just like halogen, hydrogen also combines with alkali metals to form salts with similar formulae.                                                 Hope this helps......                                                       If yes, mark as brainiest                                                              :))))))))))))