Below are all the elements that start with o.
| Name | Symbol | Atomic
Number |
Atomic Mass
(g/mol) |
| Osmium | Os | 76 | 190.2 |
| Oxygen | O | 8 | 15.9994 |
Explore More About Each Element That Start With o.
| Element | Usage/Fact |
| Oxygen (O) | Essential for respiration and combustion. |
Hi, I'm USMI, engdic.org's Author & Lifestyle Linguist. My decade-long journey in language and lifestyle curation fuels my passion for weaving words into everyday life. Join me in exploring the dynamic interplay between English and our diverse lifestyles. Dive into my latest insights, where language enriches every aspect of living.