Fluorine electronic configuration

This idea is readily extended to simple molecules of compounds formed by nonmetal atoms. An example is the HF molecule. You will recall that a fluorine atom has the electron configuration ls22s22p5. ft has seven electrons in its outermost principal energy level (n = 2). These are referred to as valence electrons, in contrast to the core electrons filling the principal level, n = 1. If the valence electrons are shown as dots around the symbol of the element, the fluorine atom can be represented as... 

As you can see, the fluorine atom owns six valence electrons outright and shares two others. Putting it another way, the F atom is surrounded by eight valence electrons its electron configuration has become ls22s22p6, which is that of the noble gas neon. This, according to Lewis, explains why the HF molecule is stable in contrast to species such as H2F, H3F,... none of which exist. 

This simple model is readily extended to other atoms. The fluorine atom (electron configuration lsz2s22p5) has a half-filled p orbital ... 

Deduce the ground-state electron configuration of the fluorine molecule and calculate its hond order. 

C08-0009. Determine the energy level diagram and shorthand notation for the electron configuration of the fluorine atom. 

The periodic table orders the elements in a way that helps chemists understand why atoms behave as they do. What makes fluorine react violently with cesium while its nearest neighbor neon is reluctant to react with anything In other words, what gives the elements their properties and what order lies below the surface of their seemingly random nature Scientists know now that the periodicity of the elements is due largely to recurring patterns in their electron configurations. 

Which of these is the ground-state electron configuration for an atom of fluorine (atomic number = 9) ... 

EXAMPLE 5.2. What is the electron configuration of a fluoride ion, obtained by adding an electron to a fluorine atom ... 

Upon gaining an additional electron, the fluorine atom achieves the electron configuration of neon ... 

Write down in full, using subshell notation, the electronic configuration of (a) the isolated fluorine atom (F has atomic number 9) and (b) the chloride ion CD (Cl has atomic number 17). (2)... 

The electron configuration of fluorine is ls22s22p5 and its orbital representation is ... 

When we look at the electron configuration of the fluorine atom, we see that it has seven valence electrons. Therefore the electron dot representation of fluorine atom is -F though it can also be represented by R, F or F ... 

Krypton is an inert gas element. Its closed-shell, stable octet electron configuration allows zero reactivity with practically any substance. Only a few types of compounds, complexes, and clathrates have been synthesized, mostly with fluorine, the most electronegative element. The most notable is krypton difluoride, KrF2 [13773-81-4], which also forms complex salts such as Kr2F3+AsFe [52721-23-0] and KrF+PtFF [52707-25-2]. These compounds are unstable at ambient conditions. Krypton also forms clathrates with phenol and hydroquinone. Such interstitial substances are thermodynamicahy unstable and have irregular stoichiometric compositions (See Argon clathrates). 

Considering the influence of electronic configurations on crystal structures it may be asked, whether certain structure t5rpes are restricted to fluorine compounds of the transition elements. Apart from the structure types distorted by the Jahn-Teller effect such a limitation is not obvious at all. On the contrary quite a number of structure prototypes are represented by compounds of the main group elements. Bonding thus must be similar in both, main group and transition element fluorides, at least as for the factors that influence crystal structmes. 

Sodium donates an electron to fluorine, and in the process, sodium becomes the sodium ion, Na+, and fluorine becomes the fluoride ion, F. The net outcome of the transfer of an electron in this case results in both sodium and fluorine obtaining a valence electron configuration similar to the noble gas neon. The Na+ and F are held together by the electrostatic attraction between the oppositely charged ions. 

The standard state of fluorine is the difluorine molecule, F2, which has an electronic configuration identical with that of the peroxide ion. The two species are isoelectronic. The bond order is 1, and the bond dissociation energy of 155 kj mol-1 and bond length of 144 pm are very similar to the values for 022-. 

List these electron configurations for fluorine, F, in order of increasing energy for the atom ... 

---