Question

what is periodic property?How do the following properties change in a group and periods explain?
1.atomic radius
2.ionization energy
3.electron affinity
4.electro negativity​

Answer 1

Group : Electronegativity values of elements decreases as we go down in a group. Period : Electronegativity increases along a period from left to right. Ionization energy increases from left to right in a period. Ionization energy decreases from top to bottom in a group.