Electronegativity is, to some extent, a subjective value (though based on a composite of actually measurable physical properties). The highest electronegativity is usually assigned to fluorine. The electron configuration of fluorine's outermost shell is 2s2 2p5.
The halogen family, F,Cl,Br,I,As all have outer shells with 7 electrons
Minor quibbling about the format of the question aside, sulfur is the element with that ground state electronic configuration.
The element with an outermost electron configuration of 6s2 is Barium (Ba). It is classified as an alkaline earth metal on the periodic table.
Iron (Fe)
Silicon. Electronic configuration [Ne]3s23p2
The halogen family, F,Cl,Br,I,As all have outer shells with 7 electrons
The most electronegative element is fluorine. Its electron configuration is 1s2 2s2 2p5.
Minor quibbling about the format of the question aside, sulfur is the element with that ground state electronic configuration.
outermost electronic level
The element with an outermost electron configuration of 6s2 is Barium (Ba). It is classified as an alkaline earth metal on the periodic table.
The element that has 7 valence electrons in its third shell is chlorine. The electronic configuration of chlorine is 2, 8, 7, with the outermost shell containing 7 electrons.
The element is Argon. Its configuration is 2 8 8.
The element is magnesium with the electronic configuration 2, 8, 2 and has 2 valence electrons.
definition of electronic configuration
the element is tungsten with the electronic configuration Xe 4f14 5d4 6s2
Iron (Fe)
Fluorine (F) is the most electronegative element because it has 5 electrons in it's 2p subshell. The optimal electron configuration of the 2p subshell has 6 electrons. Since F is close to this optimal configuration, electrons are highly attracted to the nucleus.