Question

Why is the hydrogen kept along with alkali metals in

the modern periodic table? Write three reasons of it.

Answer 1

Hydrogen is not kept along with alkali metals in the modern periodic table as it possesses unique chemical properties, has a higher ionization energy, and a different atomic structure.

Step-by-step explanation:

In the modern periodic table, hydrogen is not kept along with alkali metals. It is usually placed at the top of Group 1, above the alkali metals, but it is not actually a member of the group. Here are three reasons why:

1. Chemical Properties: Hydrogen possesses unique chemical properties that do not match those of alkali metals. It is a nonmetal and can form covalent bonds, whereas alkali metals are metals and primarily form ionic bonds.
2. Ionization Energy: The ionization energy of hydrogen is much higher than that of alkali metals. This difference in ionization energy indicates that hydrogen is a distinct element from the alkali metals.
3. Atomic Structure: Hydrogen only has one electron, whereas alkali metals have one valence electron. The difference in the number of electrons and their arrangement further supports the distinction between hydrogen and alkali metals in the periodic table.

Learn more about Hydrogen in the modern periodic table