Count: 0 — No chemical elements start with the letter Q in IUPAC’s authoritative list of 118 recognized elements. This entry belongs to the Complete Chemical Elements A–Z reference and confirms that, for the global alphabetical index used by students and teachers, Q yields no matches. Note that this absence is itself an interesting detail: the letter Q is uncommon as an initial in the Latin and Greek roots and honorific names that dominate element naming.

Note the technical and historical reasons for the gap. Element names follow conventions set and recorded by IUPAC and by primary sources such as NIST and PubChem; those conventions favor Greek or Latin stems, discoverers’ names, and place names, and none of those conventional roots begin with Q. Modern systematic temporary names also use numeric Latin prefixes (e.g., unun-), which do not produce any Q-starting names. Treat this result as a verified fact based on the established element list rather than an omission.

Consider related searches that satisfy similar intent. Look for compounds, minerals, or chemical terms that start with Q (for example, quartz, quaternary, quasicrystal) if you expected chemistry words beginning with Q. For authoritative element data and discovery years consult IUPAC, NIST, and PubChem for the complete A–Z tables and to confirm that Q returns no elemental entries.