In terms of atomic structure, explain why the electron affinity of fluorine is lower than aluminum. How does the atomic radius of F- compare to the atomic radius of neon? Explain. Why, in terms of atomic structure, is the radius of a Na atom larger than the r...
Explain in terms of atomic structure why more energy is required to remove one electron from a fluorine atom than from a chlorine atom. Explain why beryllium forms an ion with a charge of +2. Explain why the electrons in the filled electron subshells of an atom do not take ...
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Seeing that picture would have delighted Rutherford, Thomson, and the other pioneers of atomic science. Now, scientists are even starting to see inside atoms. Thanks to the development of really powerful electron microscopes, we can peer deep inside things at their internal atomic structure. In ...
A computer turns this information into a map of the specimen that shows up its detailed atomic structure. One big drawback of ordinary electron microscopes is that they produce amazing detail using high-energy beams of electrons, which tend to damage the objects they're imaging. STMs avoid ...
Cold-adapted enzymes from psychrophilic species show the general characteristics of being more heat labile, and having a different balance between enthalpic and entropic contributions to free energy barrier of the catalyzed reaction compared to mesophili
Account for the differences in properties given in the table below in terms of the differences in structure and bonding in each of the following pairs. Substance Bond Length F2 1.42 Br2 2.28 N2 1.09 a. F2 and Br2 b. F2 and N2 Can you pl...
Hin and his colleagues measured the abundances of two isotopes of magnesium — Mg-24 and Mg-25 — in a variety of chondrites, Earth rocks and Mars meteorites. Isotopes are versions of an element that differ in the number of neutrons in their atomic nuclei; Mg-25 has one more neutron tha...
In terms of atomic structure, explain why the ionization energy is not the same between the strontium ion and bromide ion even though they are isoelectronic. What is ionization energy and how is it determined? The first five successive ionisa...
Explain how spectroscopy (to determine the concentration of an unknown) works in terms of molecular-level behavior. What is the Copenhagen theory and how is it different from the quantum theory? Use principles of atomic structure to explain why in aqueous solution, (a) potassium for...