The original answer was "Oxygen".
That's not strictly correct in two ways.
First of all Oxygen is not a noble case. The noble gases are in column 8 (or zero) of the Periodic Table and all have 2p6 electronic structures. The point about the noble gases is that they have full outer shells of electrons and so don't readily react. 2p4 is not full as the p-orbitals can fill to 6.
A more correct answer is to say that 1s2 2s2 2p4 is the electronic structure for a single atom of oxygen. That said oxygen normally exists as a diatomic O2 molecule so it would have molecular orbitals.
However theoretically a 2+ ion of Neon (which is a Noble gas) would have this electronic structure. Whether it can be done is another matter.
The element with the electron configuration 1s2 2s2 2p6 3s2 3p6 is Argon, which has an atomic number of 18.
This group has the electron configuration of sulfur. The element sulfur has 16 electrons, and its electron configuration is 1s2 2s2 2p6 3s2 3p4.
The noble gas configuration of a sodium ion (Na+) is the same as that of neon. This means that the electron configuration of sodium ion is [Ne] where [Ne] represents the electron configuration of neon.
Sulfur is the group 16, period 3 chemical element. Thus, its electron configuration is 1s2 2s2 2p6 3s2 3p4. Another way to write this is [Ne] 3s2 3p4 since the initial portion of the configuration is the same as neon's.
Phosphorus has the above electron configuration. It has 15 electrons and protons.
The element with the electron configuration 1s2 2s2 2p6 is neon (Ne).
The element with the electron configuration 1s2 2s2 2p6 3s2 3p6 is Argon, which has an atomic number of 18.
1s2 2s2 2p6 3s2 3p3 is the electron configuration of element 15.
This group has the electron configuration of sulfur. The element sulfur has 16 electrons, and its electron configuration is 1s2 2s2 2p6 3s2 3p4.
Magnesium
Magnesium, Mg
The noble gas configuration of a sodium ion (Na+) is the same as that of neon. This means that the electron configuration of sodium ion is [Ne] where [Ne] represents the electron configuration of neon.
Argon
There are a total of 14 electrons in this electron configuration. The element whose atomic number corresponds to 14 is silicon.
The element calcium (atomic number 20) has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 or in noble gas form : [Ar] 4s2
The investigator will find that 1s2 2s2 2p6 is the electron configuration for neon.
1s2 2s2 2p6 3s2 3p6 3d8 4s2