Home » An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is Periodic Table MCQs An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is April 16, 2022 5 Views Q. An element belongs to period 2 and group 2 th number of valence electrons in the atoms of this element is. A. 2 B. 4 C. 3 D. 1 Answer: 2