Question

What is valency of silicon

Answer 1

Answer:

The valency is equal to the number of electrons in the outermost shell (valence shell) of an atom. For example, silicon (atomic number 14) has the following electronic distribution: K = 2, L = 8, M = 4. In the outermost shell there are 4 electrons so, the valency of silicon is 4.

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Answer 2

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.