Question

By giving suitable examples show that all while the properties of the elements in a period show a gradual change.

Answer 1

Gradual changes in properties across the period

1. Elements in a period, do not have the same no. of valence electrons.
2. As a result, their qualities change gradually.
3. For example, Electronegativity of elements increases from left to right in a period.
4. From left to right, the ionization energy of elements also increases.