Question

explain the periodic trend in metalic and non-metalic character​

Answer 1

Answer:

trends variation of metallic and non metallic character in period and group : -

In period : As ionisation enthalpy increases across a period from left to right, the metallic character decreases. Since electron gain enthalpy becomes more negative across a period, nonmetallic character increases

In group : As ionisation enthalpy decreases down the group, tendency to lose valence electrons increase. Hence, metallic character increases and nonmetallic character decreases.