Question

List any two properties of the elements belonging to the first group of the Modern Periodic Table.

Answer 1

The elements belonging to the first group of the modern periodic table are known as alkali metals.

Example: Hydrogen(H), Lithium(Li), Sodium(Na), Potassium(K), etc.

Properties of first group elements:

• The first group of elements has valency equal to one because they contain one electron in their valence shell which they can donate to attain noble gad configuration.
• The metallic character of group one elements is high due to low ionization enthalpy.