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Isotopes: Heavy Water Ice Cubes An H2O ice cube is shown to float in a beaker of liquid water, while an ice cube of D2O (heavy water) is shown to sink in liquid water.
Hydrogen Bonding |
Isotopes |
Physical Properties |
Atomic Properties / Structure |
Water / Water Chemistry
Assessment Questions: 2 results
Atoms,_Molecules_and_Ions : CalcAtmWeight (10 Variations)
Chlorine has two naturally occurring isotopes, 35Cl and 37Cl, with masses of 34.9689 amu and 36.9659 amu, respectively. Calculate the abundances of these isotopes of chlorine.
The History of Element 43—TechnetiumFathi Habashi The article From Masurium to Trinacrium: The Troubled Story of Element 43 is the best story so far published about the history of technetium. There is, however, one paragraph on the right column of page 226 that is questionable. Habashi, Fathi. J. Chem. Educ.2006, 83, 213.
Isotopes |
Nuclear / Radiochemistry |
Periodicity / Periodic Table
How Radioactive Is Your Banana?David W. Ball This exercise uses a banana to illustrate the level of radioactivity (in this case, from K-40) in an everyday object. Ball, David W. J. Chem. Educ.2004, 81, 1440.
Food Science |
Nuclear / Radiochemistry |
Isotopes
A Different Approach to a 3-D Periodic System Including Stable IsotopesAlexandru T. Balaban On a Periodic System with the two dimensions represented by Periods and Columns, one may stack each stable nuclide of an element along the third dimension. This "Downtown Area" representation is helpful for interconnecting concepts of: element, isotope or nuclide (stable vs. radioactive), atomic weight, atomic number, mass number. Balaban, Alexandru T. J. Chem. Educ.1999, 76, 359.
