Explain why the copper element has two ion charges. Explain why the periodic trends for metal and non-metal reactivity are opposites. Why is iron more reactive than copper? Why the element having d^{10} configuration are not considered as tran...
The trivalent chromium ion has been successfully used as the optical activator in a large number of tunable crystalline laser materials. Some of the unique properties of its 3d 3 electron configuration which have led to this widespread success are reviewed. It is found that a combination of ...
Electron Affinity 0.67584 ± 0.00012 eV 5451.0 ± 1.0 cm-1 Electron Binding Energies K (1s) 5989 eV LI (2s) 696.0 eV LII (2p1/2) 583.8 eV LIII (2p3/2) 574.1 eV see all 7 energies ... Electron Configuration Orbital Occupancy [Ar] 3d5 4s1 [Ar] represents the clos...
What is the noble gas electron configuration of the chromium ion, Cr+6? Is the ion paramagnetic or diamagnetic? What is the set of quantum numbers that represents its last electron?This is pretty much fantasy. Chromium does not form a +6 ion in a compound. It might be possible to hit ...
A monatomic ion with a -2 charge and a monatomic ion with a +2 charge both have an electron configuration of 1s22s22p63s23p6. If these ions combine to form a compound, what is the formula of that compound? What is the name of the compound...
By diagonalizing the complete energy matrix of a d4 configuration ion in tetragonal symmetry, the zero-field-splitting parameters a, D and F of InP:Cr2+ have been studied. The local structure distortion parameters ΔR = 0.08 and Δθ = 1.01 were estimated. They show an expansion distortion ...
The acute oral toxicity for chromium(VI) ranges between 50 and 150 µg/kg.[51] In the body, chromium(VI) is reduced by several mechanisms to chromium(III) already in the blood before it enters the cells. The chromium(III) is excreted from the body, whereas the chromate ion is transf...
{2}}\)). In a high spin-configuration (which is common for transitions metals prior to Mn),egstates will be partially filled, since Cr(II) is a3d4ion. In addition,egstates own larger spatial extension, which facilitates the orbital delocalization as well as the formation of a delocalized...
Matrix isolation with an ion transfer device for interference-free simultaneous spectrophotometric determinations of hexavalent and trivalent chromium in a flow-based system. Effect of chromium(III) gallate complex on stabilization of collagen. EBSD and electron channeling study of anomalous slip in oligo...
The number of electrons in each of cobalt's shells is 2, 8, 15, 2 and its electron configuration is [Ar]3d7 4s2. The cobalt atom has a radius of 125 pm and a Van der Waals radius of 192 pm. Cobalt was first discovered by George Brandt in 1732. In its elemental form, cobalt ...