The Chemistry of Polychlorinated Biphenyls Molar Mass Calculations and Molecular Weight Calculator Stoichiometry: Molarity, Molality and Normality What You Do and Don't Know About Fluorine Reference Resources Chemical Database Chemistry Dictionary Periodic Table of Elements ...
Mendeleev ordered phenomenologically the 66 elements known in his time by superposition of molecular weight and chemical properties, not knowing about their atomic structure. Nowadays, it is general knowledge that the periodic table universally orders more than 100 elements with regard to their atomic ...
Periodic Table of Elements Comprehensive data on the chemical element Bromine is provided on this page; including scores of properties, element names in many languages, most known nuclides of Bromine. Common chemical compounds are also provided for many elements. In addition technical terms are linked...
However, in the old IUPAC system the letters A and B were designated to the left and right part of the table, while in the CAS system the letters A and B were designated to the main group elements and transition elements respectively. (The preparer of the table arbitrarily could use ...
The integer mass number of an element is the sum of protons and neutrons in the nucleus of a particular isotope. In this table, "atomic weights" in parentheses are the average of the mass numbers of the most stable isotopes for elements that either do not occur naturally or that are too...
The Atomic Mac/PC is the award winning periodic table of the elements for the Macintosh. In addition to the usual information found in such programs, The Atomic Mac/PC also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products. No ...
I've made a tool (cptable.com) that I think might be able to help others. What differentiates this reference from other references: Electronegativity info built in!. molecular weight calc. search for position of elements better mobile support (actually better UI/UX was one of the main goals...
structures. He organized the elements by increasing atomic weight and then noted that every eighth element was similar. This observation led to the creation of the Law of Octaves. His findings were important as they were the first to note patterns in the organization of the periodic table. ...
structures. He organized the elements by increasing atomic weight and then noted that every eighth element was similar. This observation led to the creation of the Law of Octaves. His findings were important as they were the first to note patterns in the organization of the periodic table. ...
Periodic Table of Elements Element Nickel - Ni Comprehensive data on the chemical element Nickel is provided on this page; including scores of properties, element names in many languages, most known nuclides of Nickel. Common chemical compounds are also provided for many elements. In addition ...