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At the top of the periodic table
1st row and 1st column top left most element,
hydrogen-1s(1) atomic number- 1 atomic mass-1
it has a proton and an electron,no neutron
There is no correct position for hydrogen in periodic table.Hydrogen having one electron in outmost orbital so it placed in first group.
Hydrogen can place in halogen family also because it takes one electron and get stabel helium configuration as like other halogens.
we can''t mentioned the specified postion of hydrogen in periodic table because
Hydrogen has the configuration of first A group elements so that''s why we think that it is placed in first A group elements .Hydrogen having similar properties of the seventh A group elements it has negarive charge in 7A if it takes one electron it gets inertgas configuration
so that''s why we can''t specify the position of hydrogen in periodic table.
Thanks for asking these questions..............
posted by
D.Nagesh
IIIT NUZVID IN ANDHRAPRADESH
INDIA
position less
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