The KrF+cation has been shown to behave as a Lewis acid (electron-pair acceptor) toward a number of Lewis bases that are resistant to oxidation by the strongly oxidizing KrF+cation at low temperatures. These Lewis acid-base adducts are exemplified by HCNKrF+and F3CCNKrF+, which are formed...
It decays via electron capture with a 99.7% branch to the ground-level of 81Br, and a weak 0.3% branch to an excited level that promptly decays with a 276 keV γ-ray emission (Firestone and Shirley, 1996). Following a K-shell electron capture there is a 13.5 keV x-ray emission. By...
Absolute electron impact ionization cross sections of the M subshells of krypton have been measured. Discrepancies between the measurements and calculations by McGuire are found.doi:10.1016/0375-9601(81)90608-3Akira YagishitaElsevier B.V.Physics Letters A...
William Ramsay received the Nobel Prize for Chemistry in 1904, “in recognition of his services in the discovery of the inert gaseous elements in air, and his determination of their place in the periodic system.” He was responsible for adding an entire new group to the periodic table.Radonwa...
Ionization energyis lowest for the alkali metals, which have a single electron outside a closed shell. Ionization energyincreases across a row on the periodic maximum for the noble gases which have closed shells. For example, sodium requires only 496 kJ/mol or 5.14 eV/atom to ionize it. On...
a range of methods (X-ray photoelectron spectroscopy (XPS;Supplementary Fig. 3), XRF, high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and thermogravimetric analysis (TGA)) confirmed the presence of successfully encapsulated lead; in particular, HAADF-STEM measurement...
The ionization in the M shells was caused by electron impact. The use of a gaseous target made it possible to measure the Auger lines even at energies as low as 25 eV. The absolute energies and relative intensities of a great number of transitions were determined: 22 of the M 4, 5 ...
Respective final-ion-charge spectra are found to be sensitive both to the number of initial inner-shell vacancies and to their distribution among electron subshells.doi:10.1016/S0368-2048(00)00240-1A.G. KochurElsevier B.V.Journal of Electron Spectroscopy & Related Phenomena...