Question #ffc2c

1 Answer
Simon Moore
Apr 25, 2017

Element.

Explanation:

Ozone is #O_3#, so it is an allotrope of oxygen (which predominantly exists as #O_2#). However, whether existing in the form of molecular oxygen (#O_2#) or ozone (#O_3#), it is still an element, as it contains only one type of atom.

Related questions
See all questions in Review of Elements and Compounds
Impact of this question
2351 views around the world
You can reuse this answer
Creative Commons License