What is the core electron of sodium?
The element sodium has the electron configuration 1s22s22p63s1. The outer energy level is n = 3 and there is one valence electron. The attraction between this lone valence electron and the nucleus with 11 protons is shielded by the other 10 core electrons.
What is electron configuration of sodium?
[Ne] 3s¹
Sodium/Electron configuration
What is the electron configuration of sodium 11?
2.7: Electron Configurations
| Z | Element | Configuration |
|---|---|---|
| 11 | Na | 1s 2 2s 2 2p6 3s 1 |
| 12 | Mg | 1s 2 2s 2 2p6 3s 2 |
| 13 | Al | 1s 2 2s 2 2p6 3s 2 3p1 |
| 14 | Si | 1s 2 2s 2 2p6 3s 2 3p2 |
What is the electron configuration notation for sodium?
The electron configuration of a neutral sodium atom is #1s^2 2s^2 2p^6 3s^1#. In this configuration we note that there is only one electron in the 3rd energy level. Atoms prefer to gain the stability of octet, by having eight electrons in the outer shell, the electrons of the s and p orbitals.
What is the electronic configuration of sodium?
In this notation, the electronic configuration of sodium would be 1 s2 2 s2 2 p6 3 s1, distributed in the orbitals as 2-8-1. Often, a shorthand method is used that lists only those electrons in excess of the noble gas configuration immediately preceding the atom in the periodic table.
Which electron configuration represents a transition element?
The general electronic configuration of transition elements is (n-1)d 1-10ns 1-2. The (n-1) stands for inner shell and the d-orbitals may have one to ten electrons and the s-orbital of the outermost shell (n) may have one or two electrons.
What is the valence electron configuration of the sodium atom?
The electron configuration of neutral Na is 1s22s22p63s1 but in Na+ it loses one electron, so it has a new electron configuration of 1s22s22p6 means Na+ has (2+6=8) outermost electrons which makes it stable. Thus, sodium ion (Na+) has eight valence electrons.