The noble gas configuration for Sr (strontium) is [Kr]5s2
The noble gas configuration for Cobalt (Co) is [Ar] 3d7 4s2.
The noble gas configuration for cobalt (Co), which has an atomic number of 27, is [Ar] 3d^7 4s^2. This notation indicates that cobalt has the electron configuration similar to that of argon, followed by seven electrons in the 3d subshell and two electrons in the 4s subshell.
The noble gas configuration for Sr (strontium) is [Kr]5s2
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
It is [Ar] 3d10 4s2 4p4
The noble gas configuration for Cobalt (Co) is [Ar] 3d7 4s2.
Co is cobalt and is not a noble gas. Cobalt is a transition metal. Its electron configuration is [Ar]3d74s2.
The noble gas configuration for Sr (strontium) is [Kr]5s2
[He] 2s1
The correct noble gas configuration for Li is neon (1s^2 2s^1).
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
It is [Ar] 3d10 4s2 4p4
The noble gas electron configuration for W (tungsten) is [Xe] 6s2 4f14 5d4. This configuration represents the arrangement of electrons in tungsten, with the outermost electrons following the pattern of the noble gas xenon.
The noble configuration for Ca is [Ar]4s2.
The noble gas core for fluorine is neon. So the electron configuration for fluorine with a noble gas core is [Ne] 3s^2 3p^5.
I am assuming that the question is for Co2+ ion. and the answer is [Ar] 3d5 4s2
The shorthand electron configuration allows all of the electrons in a noble gas preceding an element to be omitting and written by [nobel gas name]. For nitrogen, the noble gas preceding it is He. Thus, its configuration is [He]2s2 2p3.