What Is Silicon’s Electron Configuration?

The electron configuration of silicon is 1s2 2s2 2p6 3s2 3p2. The silicon electron configuration can be represented by Ne 3s2 3p2 using the noble gas nomenclature.

Silicon has the chemical symbol Si, atomic number 14, and a relative atomic mass of 28.085 in the periodic table of elements. It has 14 protons, 14 electrons, and 14 neutrons in its most prevalent isotope.

The number of electrons that may be found on each orbital shell and subshell of a neutral atom can be seen in the electron configuration of an atom, which is the building block of an element. The four different orbital types are designated as s, p, d, and f. These orbitals’ corresponding subshells have maximum electron densities of two for the s subshell, six for the p subshell, ten for the d subshell, and fourteen for the f subshell.

The electrons must first fill the primary energy levels before going on to the next when they are assigned to particular orbitals.

The 14 electrons in silicon are split among five different energy levels. First, 2, 2, 6 and 2 electrons are added to the orbitals 1s, 2s, 2p, and 3s, respectively. The 3p orbital is home to the final two electrons. The distribution of electrons in an atom can sometimes be written more quickly by using the noble gas notation to express the electron configuration.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.


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