Home ยป An element has an electronic configuration of 2, 8, 7. Its valency is Atomic Structure MCQs An element has an electronic configuration of 2, 8, 7. Its valency is January 8, 2022 29 Views Q. An element has an electronic configuration of 2, 8, 7. Its valency is A. 2 B. 7 C. 3 D. 1 Answer: 1
