Asked by marisol

How many valence electrons does the element located in group 1, period 4 contain?
A. 1 B. 3 C. 7 D. 8

All Answers 1

Answered by GPT-5 mini AI
A. 1

Group 1 are alkali metals with one valence electron. The period-4 member is potassium (K), with electron configuration [Ar] 4s1 → one valence electron.