Group ground state electronic configuration

Let s look at the ground state electron configuration and orbital diagram of the beryllium atom (4Be) which is the first element in group 2A. 

All three metals (Zn, Cd, Hg) in Group 12 (IIB) have a ground state electron configuration ending with... 

In general, simple dialkylzinc and diarylzinc compounds are monomers in which the zinc atom, as a consequence of its ground-state electronic configuration, is sp hybridized. Thus, such molecules contain a linear C—Zn—C arrangement. The only known exception to this rule is diphenylzinc, which in the solid state is a dimer formed via electron-deficient /r -bridging phenyl groups. 

In order to find the group and period number of any atom, the ground state electron configuration is written first. Then the following points are taken into consideration. 

In practice both natural and synthetic crystals are oxygen deficient, leading to donor levels approximately 0.1 eY below the bottom of the conduction band and consequently to n-type semiconductivity. Doping the crystal with group V elements also induces n-type semiconductivity the usual dopant is antimony. The ground state electronic configuration of the Sb atom is 5s2p3, and when it... 

The point group symmetry of thiophene is C v According to MO theory, the ground-state electronic configuration can be written as... 

The metallic element thallium, atomic number 81 (relative atomic mass 204.38), is the heaviest member of group 13 of the periodic table. The ground-state electron configuration is [XeJdf Sd Obs bp. ... 

Bismuth, Bi, the 83rd element of the periodic table is the most metallic and the least abundant of the elements in the nitrogen family (group 15). It has an atomic mass of 208.980 and a ground state electronic configuration of [Xe] 4f 5d %s 6p. The bismuth atom usually utilizes the three 6p electrons in bond formation and retains the two 6s electrons as an inert pair, hence the oxidation state -1-3 exhibited by bismuth in the vast majority of its compounds. However, a variety of organobismuth compounds can contain the element in the -1-5 oxidation state. Coordination numbers are 2, 3,4, 5 and 6. Bismuth not only has metallic characteristics but also exhibits many properties similar to those of semiconductors and insulators. Consequently, it is often classified as a semi-metal or metalloid. Bismuth compounds are usually colorless unless the metal is bound to a chromophore. 

There are six ground state electronic configurations for main-group elements given below. Identify the valence electrons in each and then group them in pairs that would be expected to have similar chemical properties. Hint Rewrite each as a condensed electronic configuration. 

Write the ground state electronic configuration for the following main-group elements and their ions. Identify the noble gas configuration of each ion. 

Write out the ground state electronic configuration for O, S, and Se and show why it is correct to place them in the same group. 

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