Question

"Elements in periodic table show periodicity of properties". List any four such properties. Answer quickly please ! plz explain them a bit. only definitions of the properties is also enough. i would be thankful.

Answer 1

Answer:

Four properties are as follows :-

1. Elements have same no. of valence electrons and same valency in a group.
2. Elements have similar chemical properties in  a group.
3. The atomic size of elements increases down the group.
4. The metallic character of elements also increases down the group.