elements that form diatomic molecules include _. a oxygen b hydrogen c sodium d two of the above
elements that form diatomic molecules include _. a oxygen b hydrogen c sodium d two of the above
Answer
Brief Explanations:
Oxygen exists as $O_2$, hydrogen as $H_2$, both are diatomic molecules. Sodium does not form diatomic molecules under normal conditions.
Answer:
D. two of the above