Question

Are elements with similar chemical properties more likely to be found in the same period or in the same group?

Answer 1

Same group

Explanation:

The elements of a group have similar chemical properties but in a period they have different chemical properties. This is because the chemicals properties depend on no of valence electrons. As in a group all elements have same no of valence electron that's why they have similar chemical properties but in a period the no of valence electron varies that's why they differ in chemical properties.