Please do not make major changes to this category (or to categories and pages related to this discussion), or remove this notice until the discussion has been closed.
This is a main category requiring frequent diffusion and maybe maintenance. As many pictures and media files as possible should be moved into appropriate subcategories.
<nowiki>estructura química; estructura química; chemische Struktur; Struchtúr ceimiceach; ساختار شیمیایی; 化學結構; Structură chimică; 化学構造; kemisk struktur; מבנה כימי; रासायनिक संरचना; 화학 구조; kemia strukturo; chemická struktura; struttura chimica; structure chimique; Структурăлла хими; chemische structuur; struktura chemiczna; ستروکتور کيميا; структурная хімія; estrutura química; химическая структура; Tamsuka takrurant; Хемијска структура; хемијска структура; Hemijska struktura; хімічна структура; Keemiline struktuur; Строеж на химическите съединения; Struktur kimia; kjemisk struktur; kjemisk struktur; Hemijska struktura; Cấu trúc hóa học; Kimyasal yapı; Cheemsch Struktur; struktur kimia; chemical structure; بنية كيميائية; Chemická štruktúra; хемиска структура; spatial arrangement of atoms in a molecule and the chemical bonds; Moleküllerin organize edilmiş hali; 물질의 화학적 구조; estructura quimica; ĥemia strukturo; Chemisch Formel; Cheemsch Formel; البنية الكيميائية; بناء كيميائي; بنيه كيميائيه; 化学结构; Hemijska konformacija</nowiki>
chemical structure
spatial arrangement of atoms in a molecule and the chemical bonds
If you really must upload PNG, then please provide SVG or high-resolution (>1000 pixels width) black-and-white PNG images. That would allow to use these images in printed form in an acceptable quality.