(Ne)3s2 3p2 is an electron configuration notation that describes the arrangement of electrons in an atom or ion. The (Ne) in parentheses indicates that the electron configuration begins with the noble gas neon, which has the electron configuration 1s2 2s2 2p6. The 3s2 indicates that the next two electrons are in the 3s orbital, and the 3p2 indicates that the final two electrons are in two of the three 3p orbitals.
The superscript 2 for each orbital indicates that there are two electrons in each orbital, following the Pauli exclusion principle, which states that no two electrons in an atom can have the same set of quantum numbers.
The "sp" notation is not commonly used in electron configuration notation. It is more commonly used in hybridization notation to describe the hybridization of atomic orbitals in a molecule. In that context, "sp2" would indicate that one s orbital and two p orbitals have combined to form three hybrid orbitals, which are used to form sigma bonds with other atoms.
The "ne" in ne3s2 3p1 refers to the element Neon, which is a chemical element with the atomic number 10. The notation ne3s2 3p1 specifies the electron configuration of Neon, where the "ne3s2" denotes 3 electrons in the 3s orbital and "3p1" denotes 1 electron in the 3p orbital.
Magnesium, Mg.
Ne3s2 doesn't represent a valid element. The symbol for Neon is Ne, and the electron configuration for neon is 1s2 2s2 2p6. The number 3 in front of "Ne" and "S" doesn't follow the typical electron configuration notation.
The electron configuration indicates that the element ne3s2 3p4 belongs to the p-block in period 3 of the periodic table. It is specifically in group 16 (also known as group VI-A or 6A), which includes elements such as oxygen and sulfur.
Since that other guy said no, I'm going to explain why. Since argon has a structure of Ne3s2 3p6 (I think I might have the p and s switched around) that makes a second shell, so it is impossible to share an electron field with another molecule since there are no spaces for electrons to attach. Even if you put it with a highly reactive element such as sodium or hydrogen, it will not react.
PCl4- would have 10 electrons around the central P atom- so the hybridisation would be sp3d. PCl3 is a Lewis base so form this ion is unlikely! Did you mean PCl4+ a real cation? This is tetrahedral with sp3 hybridisation