8,1 87Francium2,8,18,32,18,8,1 All of the atoms in alkali metals have one electron in their outer electron shells. To become stable they have to give off one electron to elements with seven electrons in their outer
could conversely exist and that the limits of the table of the elements could be overcome (Cwiok et al.2005; Dean2007). Even if scientists are still trying to fully understand properties of atoms and nuclei, the theoretical models of nuclear structure...
Ab initio calculations have been performed to study the complexes between the noble gas elements (Ae = Ne, Ar, Kr) with a series of benzene isoelectronic heterocyclic compounds of benzene, including boraphosphinine (BP), borazine (BN), and alumazine (AlN), at MP2/Aug-CC-pVTZ level of ...
Occurrences of compounds of Se and the iridium subgroup of the PGE (IPGE: Ir, Os, and Ru), or of phases of the PGE selenides in ophiolitic or other primitive ultramafic rocks, must be extremely rare. One such occurrence, i.e., members of the RuS2 (laurite)—unnamed RuSe2 series, ...