Selenium: [Ar] 3d10 4s2 4p4 or 2, 8, 18, 6
Phosphorus: [Ar] 3d10 4s2 4p3 or 2, 8, 18, 5
The electron configuration for potassium is [Ar]4s1.
The electron configuration for sulfur is [Ne]3s2.3p4.
Selenium: [Ar]3d104s24p4 Phosphorus: [Ne]3s23p3
The electron configuration of selenium for a 2- ion is [Kr]4s2.3d10.4p6.
4s2 4p4
Se2- 1s22s22p63s23p64s23d104p6
Phosphorus has the above electron configuration. It has 15 electrons and protons.
Selenium: [Ar]3d104s24p4 Phosphorus: [Ne]3s23p3
The electron configuration of selenium for a 2- ion is [Kr]4s2.3d10.4p6.
The electron configuration of selenium is [Ar]3d10.4s2.4p4.
Phosphorus has an electron configuration of 1s2 2s2 2p6 3s2 3p3. Another way to write that is [Ne] 3s2 3p3. The [Ne] represents the fact that the beginning of phosphorus' electron configuration is the same as Neon's.
4s2 4p4
The electron configuration of phosphorus is [Ne]3s2.3p3.
The valence electrons are the outermost (highest energy) s and p sublevels. There are 5 valence electrons in a phosphorus atom, and it is in period 3, so its valence electron configuration is 3s23p3.
Se2- 1s22s22p63s23p64s23d104p6
The noble gas electron configuration of Phosphorus is [Ne] 3s2 3p3
Phosphorus has the above electron configuration. It has 15 electrons and protons.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
1s2,2s2,2p6,3s2,3p3