What are three elements which have similar chemical properties to oxygen.?

Three elements that have similar chemical properties to oxygen are sulfur, selenium, and tellurium. These elements belong to the chalcogen group (Group 16) of the Periodic Table, which means they share similar valence electron configurations. As a result, they exhibit similar reactivity and tend to form compounds with similar types of bonds, particularly with metals and nonmetals. Additionally, they can form oxides and sulfides, further illustrating their chemical similarities.