Answer :
Elements that have six electrons in the highest-energy p sublevel in their ground state are called the noble gases or inert gases. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).
Chemical elements that have five (5) electrons in the highest-energy p sublevel in their ground state are called: Halogens
Halogens are the family of chemical elements that are typically found in group VIIA of the periodic table, which means they possess seven (7) outer electrons or valence electrons.
In Chemistry, some examples of halogens include the following:
- Fluorine (F).
- Iodine (I).
- Bromine (Br).
- Chlorine (Cl).
A sublevel can be defined as an energy level that is associated with the electrons found outside the atomic nucleus.
Generally, there are four (4) types of sublevel and these includes:
I. s orbital (sublevel): it has one (1) orbital i.e 1s.
II. p orbital (sublevel): it has three (3) orbitals.
III. d orbital (sublevel): it has five (5) orbitals.
IV. f orbital (sublevel): it has seven (7) orbitals.
At the ground state, all halogens have five (5) electrons in the highest-energy p sublevel such as [tex]ns^2np^5[/tex].
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