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simple oxide cao, the peroxide cao can be made by direct oxidation of calcium metal under a high pressure of oxygen, and there is some evidence for a yellow superoxide ca(o ) . [ ] calcium hydroxide, ca(oh) , is a strong base, though it is not as strong as the hydroxides of strontium, barium or the
the gross mismatch of nuclear spin : ca has zero nuclear spin, being even–even , while sc has spin +, so the decay is forbidden by the conservation of angular momentum . while two excited states of sc are available for decay as well, they are also forbidden due to their high spins. as a result, when...
https://en.wikipedia.org/wiki/Calcium
gadolinium (gd) | american elements ® skip to main content american elements: the materials science companytm | certified bulk & lab quantity manufacturer of metals, chemicals, nanoparticles & other advanced materials our manufacturing products elements, products by additive manufacturing & d printing
electrons in each of gadolinium's shells is , , , , , and its electron configuration is [xe] f d s . the gadolinium atom has a radius of .pm and its van der waals radius is .pm. in its elemental form, cas - - , gadolinium has a silvery-white appearance. gadolinium was discovered by jean charles galissard...
https://www.americanelements.com/gd.html