Question

Select the correct answer why night two elements posses similar chemical properties? A. They belong to the same group of the periodic table. B. They have the same physical state ? C. They have similar physical properties D. They belong to the same period of the periodic table

Answer 1

Option A

Step-by-step explanation:

They belong to the same group of the periodic table. This is because their atoms have the same number of electrons in the highest occupied energy level.