Question

the position of hydrogen is not fixed y..?
don't copy from net
answer by ur own and I can come to know at least something otherwise try to copy from net but I need correct information

Answer 1

reasons:-

1. the element hydrogen resembles in properties with alkali metals as well as halogens.
can you put one element on two places. obviously no.

2. its properties are also different. the only element which was able to satisfy bohr s model.

Because hydrogen is a nonmetal and forms H- (hydride anions), it is sometimes placed above the halogens in the periodic table. Hydrogen also forms H2 dihydrogen like halogens. However, hydrogen is very different from the halogens. Hydrogen has a much smaller electron affinity than the halogens

Answer 2

Because its properties matches with alkali metals and halogens with both .

it has one electron in valence shell matches with alkali metals 

if we add one electron in it. it attain nearest inert gas configuration with halogens

so it is not fixed that in which group we place it .