rank the nonmetals in each set from most reactive (1) to least reactive (3). neon: selenium: fluorine:
rank the nonmetals in each set from most reactive (1) to least reactive (3). neon: selenium: fluorine:
Answer
Explanation:
Step1: Recall periodic - table trends
Non - metal reactivity is related to electron - affinity and electronegativity. Fluorine is the most electronegative element and a highly reactive non - metal. Selenium is less electronegative than fluorine. Neon is a noble gas with a full outer electron shell, making it very stable and unreactive.
Step2: Rank the elements
Fluorine is the most reactive among them, so it gets rank 1. Selenium is moderately reactive compared to the other two and gets rank 2. Neon is the least reactive and gets rank 3.
Answer:
Neon: 3 Selenium: 2 Fluorine: 1