中国化学会是从事化学或与化学相关专业的科技、教育工作者自愿组成并依法注册登记的学术性、公益性团体，中国科学技术协会的组成部分，我国发展化学科学技术的重要社会力量。
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Database of crystal structures
Digital Object Identifier System
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
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