an unknown element is a nonmetal and has a valence electron configuration of ns2 np4 . a. how many valence electrons does this element have? b. what are some possible identities for this element? c. what is the formula of the compound this element would form with potassium? d. would this element have a larger or smaller radius than barium? e. would this element have a greater or smaller ionization energy than fluorine?

The nonmetal ( call it X) with the valence electron configuration ns2np4 has 6 valence electrons (2 + 4 = 6). This nonmetal is a member of Group VIA or Group 16.

What is valence electron ?

Valence electrons are electrons in an atom's outermost shell, or energy level. For example, oxygen has six valence electrons, two of which are in the 2s subshell and four of which are in the 2p subshell. The valence electron configuration of oxygen can be written as 2s22p4.

As stated in a previous section of this chapter, electrons are extremely important because a subset of electrons known as valence electrons are solely responsible for determining how elements bond with one another. The electron configuration of an atom can be used to calculate the number of valence electrons present.

1s22s22p63s23p4

Valence electrons are found in orbitals associated with the highest occupied energy level of an atom. The remaining electrons, known as inner shell electrons, do not participate in bonding and thus are unimportant to study.

To learn more about valence electron refer to : https://brainly.com/question/16833329

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