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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.
No, the Molecular Mass of Bromobenzene Is Not 157 amu: An Exercise in Mass Spectrometry and Isotopes for Early General ChemistrySteven M. Schildcrout Even with no background in bonding and structure, students can successfully interpret the output of a modern research instrument. They learn to identify an isotope pattern, assign chemical formulas to ions giving mass spectral peaks, calculate an average atomic weight (for bromine) from measured isotopic abundances, and write balanced equations for ion fragmentation reactions. Schildcrout, Steven M. J. Chem. Educ.2000, 77, 1433.
Isotopes |
Mass Spectrometry |
Atomic Properties / Structure |
Molecular Properties / Structure
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.
Periodicity / Periodic Table |
Isotopes |
Nuclear / Radiochemistry
Argon-potassium atomic weight inversion in the periodic table.Arnikar, H. J. An explanation for the Ar-K inversion in terms of the nuclear characteristics of the naturally occurring isotopes of these elements. Arnikar, H. J. J. Chem. Educ.1992, 69, 687.
