Why the hydrogen is placed in the 1st group and 1st period.
Answers
Answered by
3
because it has one valence electrons in its outermost Shell.......
Answered by
5
The first element in the periodic table is hydrogen.Here are some reasons for the position of hydrogen:It resembles alkali metals and halogens.It has one electron in the valence shell
.Like alkali metals,H forms positive hydrogen
.It forms oxides,sulphides and halides.It acts as reductant.
In HALOGENS,it is diatomic.
Ionisation potentialvalue of H is much nearer to those ionisation potential values of halogens.
It is non-metal.
.Like alkali metals,H forms positive hydrogen
.It forms oxides,sulphides and halides.It acts as reductant.
In HALOGENS,it is diatomic.
Ionisation potentialvalue of H is much nearer to those ionisation potential values of halogens.
It is non-metal.
skbrainly:
Very very thank you.
wlcm
welcome
Similar questions