discuss the position of hydrogen in modern periodic table?
- In the periodic table the position of hydrogen is ambiguous
- But it is placed at the top of group 1 above the alkali metals. This is because the electronic configuration of hydrogen is similar to alkali metals. Both have 1 valence electron each.
- However because of its small size the properties of hydrogen do not match with the alkali metals.
- Sometimes hydrogen is not included in any group of the periodic table and it is treated as a special element.