there is no shorthand configuration for helium. its electron configuration is 1s2
[Kr]5s2
It is [Ne] 3S2.
[Kr] 5s2
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
there is no shorthand configuration for helium. its electron configuration is 1s2
The shorthand electron configuration of magnesium is [Ne]3s2.
[He]2S1
[Kr]5s2
Carbon has the chemical symbol of C and an atomic number of 6. Its shorthand or electron configuration is 1s2 2s2 2p2.
google it
It is [Ne] 3S2.
[Kr] 5s2
Radon is a noble gas; it has 8 electrons in its outer shell.
[Ne]3s23p3
[Ar]4s23d104p2
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.