MDS 546.522

Wording: Natural sciences & mathematics Chemistry Elements, Mixtures, Compounds Lead and silver group Not set Not set

0 Computer science, information & general works 252,013 ℹ️	1 Philosophy & psychology 270,129 🧠	2 Religion 681,242 🙏	3 Society, government, & culture 1,328,382 👫	4 Language 209,883 💬	5 Natural sciences & mathematics 431,918 🔬	6 Applied science & technology 940,635 💡	7 Arts & recreation 1,031,850 🎨	8 Literature & rhetoric 1,436,736 📚	9 History & geography 837,760 🗺️
50 Science 35,266 🥼	51 Mathematics 82,055 ➗	52 Astronomy 25,356 🔭	53 Physics 44,008 🍎	54 Chemistry 28,260 ⚗️	55 Earth sciences; geology 36,663 🌎	56 Fossils & Dinosaurs 11,038 💀	57 Biology 55,751 🧬	58 Plants (Botany) 26,824 🌿	59 Animals 86,697 🐼
540 Chemistry and allied sciences 6,727 ⚗	541 Chemical Reactions 5,775 💭	542 Techniques, procedures, apparatus, equipment, materials 560 🔬	543 Analytical chemistry 2,912 🌈	544 [Formerly: Qualitative Analysis] 336	545 [Formerly: Quantitative Analysis] 275	546 Elements, Mixtures, Compounds 2,694 ⚨	547 Organic chemistry 6,228 ⌬	548 Crystallography 1,088 💎	549 Mineralogy 1,665 ⚒
546.0 133	546.1 Nonmetallic elements 18	546.2 Oxygen group 194	546.3 Metals 212	546.4 Alkaline earth metals 191	546.5 Lead and silver group 60	546.6 Cerium; Rare earths 460	546.7 Iron group 338	546.8 Periodic table 104 ⚗️	546.9 Platinum group 1
546.50	546.51 15	546.52 16	546.53 16	546.54 8	546.55	546.56	546.57 1	546.58	546.59
546.520	546.521	546.522 8	546.523	546.524 6	546.525	546.526 1	546.527	546.528	546.529