This electron configuration represents Sr or Strontium. 2-8-18-7-3 represents Sr in the excited state; 2-8-18-8-2 represents Sr in the ground state.
2-8-7 is the electron configuration for Chlorine.
This element is bromine (Br): group 17, period 7.
The ground-state electron configuration for a neutral atom of manganese is: 1s22s22p63s23p63d54s2 or [Ar]3d54s2
Calcium has the electron configuration [Ar]4s2; the neutral atom of calcium has 20 electrons.
A neutral sodium must lose one electron in order for the resulting sodium ion to have the same electron configuration as an atom of the element neon.
ns2np5
[Ar] 4s2 3d7
The electron configuration for neutral Chlorine is 2.8.6.
It is the electron configuration of a neutral, not excited atom.
The ground-state electron configuration for a neutral atom of manganese is: 1s22s22p63s23p63d54s2 or [Ar]3d54s2
Calcium has the electron configuration [Ar]4s2; the neutral atom of calcium has 20 electrons.
13Al = 1s2,2s2,2p6,3s2,3p1
1s2,2s2,2p6,3s2,3p3
A neutral sodium must lose one electron in order for the resulting sodium ion to have the same electron configuration as an atom of the element neon.
Electron configuration of uranium: [Rn]5f36d17s2
When an electron is acquired by a neutral atom, the energy change is called electron affinity. Neutral atoms with an s2p6 electron configuration in the highest energy level are best classified as gases.
The electron configuration of beryllium is written as [He] 2s2. This means that it has 2s2 electrons above the configuration of Helium.
ns2np5
[Ar] 4s2 3d7