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Define valency by taking examples of silicon and oxygen.Define valency by taking examples of silicon and oxygen.

Define valency by taking examples of silicon and oxygen.Define valency by taking examples of silicon and oxygen.

Grade:12th pass

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
2 years ago
Dear



Valency is the combining capacity of an atom.
Atomic number of oxygen = 8
Atomic number of silicon = 14
K L M
Electronic configuration of oxygen = 2 6 –
Electronic configuration of silicon = 2 8 4
In the atoms of oxygen the valence electrons are 6 (i.e., electrons in the outermost shell). To fill the orbit, 2 electrons are required. In the atom of silicon, the valence electrons are 4. To fill this orbit 4 electrons are required.
Hence, the combining capacity of oxygen is 2 and of silicon is 4.
i.e., Valency of oxygen = 2
Valency of silicon = 4



Thanks

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