102 entries under element topic. ×
| osmium | |
| palladium | |
| phosphorus | |
| platinum | |
| polonium | |
| potassium | |
| praseodymium | |
| promethium | |
| protactinium | |
| radium | |
| radon | |
| rhenium | |
| rhodium | |
| rubidium | |
| ruthenium | |
| samarium | |
| scandium | |
| sodium | |
| strontium | |
| sulfur |
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| APA | Smart Define. (2015). hydrogen thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hydrogen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hydrogen thesaurus" https://smartdefine.org/hydrogen/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, hydrogen thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hydrogen/thesaurus/synonyms>. |
| MLA | Smart Define. "hydrogen thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/hydrogen/thesaurus/synonyms> |