Question 17.
Write scientific reasons.
Metallic character goes on decreasing while going from left to right in a period.
Answer:
Metallic character goes on decreasing while going from left to right in a period because:
⇒ Metals have a tendency to lose their valence electrons to form a cation.
⇒ As we move from left to right, nuclear charge increases with increase in atomic number. This increase the force of attraction of electrons by the nucleus.
⇒ As a result, the tendency of losing electrons goes on decreasing.
⇒ Thus, metallic character decreases within a period.
