Which group is best described as highly reactive nonmetals that often form salts with alkali metals and are missing one valence electron to reach a noble gas configuration in many simple textbook cases?
Q1. Which group is best described as highly reactive nonmetals that often form salts with alkali metals and are missing one valence electron to reach a noble gas configuration in many simple textbook cases?
Answer: Group 17 halogens
Explanation: Group 17 halogens have seven valence electrons, making them one electron short of a noble gas configuration; this drives their high reactivity and tendency to form salts (e.g., NaCl) with alkali metals.