Looking at its resemblance to alkali metals and the halogen family, try to assign hydrogen a correct position in Mendeléev’s Periodic Table.
- ✅ Answer: Hydrogen has properties similar to alkali metals and the halogen family. But its properties are more similar to the alkali metals as it has the property of losing the electron (electropositive). So, the position of hydrogen in Mendeleev's Periodic Table is correct.
To which group and period should hydrogen be assigned?
- ✅ Answer: First group and first period.