Silicon Number Of Electrons
- Silicon has four valence electrons. Silicon is element 14 in the Periodic Table It has two electrons in its first shell, eight electrons in the second shell, and four electrons in the third shell. Since the electrons in the third shell are the outermost electrons, silicon has four valence electrons. The video below shows how to use the Periodic Table to determine the number of valence.
- Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. The chemical symbol for Silicon is Si. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor.
How many electrons are there in the 'p' orbitals of the last shell of silicon, atomic number 14?
How many valence electrons does a neutral silicon atom have?
1 Answer
You can use the position of silicon on the periodic table, or its ground state electron configuration to determine the number of valence electrons.
Electrons Protons And Neutrons
Explanation:
The element Silicon (Si), is in group 14/IVA on the periodic table. All of the elements in this group have four valence electrons.
How Many Electrons In Silicon
A neutral silicon atom has equal numbers of protons and electrons. The number of protons is its atomic number, which is 14. So the number of electrons is 14. With this information, we can write the ground state (lowest energy) electron configuration for silicon as
How To Find Total Number Of Electrons
Valence electrons occupy the highest energy s and p sublevels in the representative elements. So you can see by the electron configuration, that silicon has two 3s electrons and two 3p electrons, which gives a total of four valence electrons.
So you can determine the number of valence electrons for silicon by its position on the periodic table, or by writing its ground state electron configuration.
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