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Question
The element oxygen has atomic number 8.Write its electronic configuration.How many valence electrons does it contain?What is its valency?
The element oxygen has atomic number 8.Write its electronic configuration.How many valence electrons does it contain?What is its valency?
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Solution
Valency:
Valency is defined as the combining capacity. It can also be stated as the number of electrons lost or number of electrons gained to achieve nearest noble gas configuration.
- Atomic number of Oxygen = 8
- So,its electronic configuration = 2,6
- Number of valence electrons = 6
- Valency of Oxygen = 8-6 = 2.
Valency:
Valency is defined as the combining capacity. It can also be stated as the number of electrons lost or number of electrons gained to achieve nearest noble gas configuration.
- Atomic number of Oxygen = 8
- So,its electronic configuration = 2,6
- Number of valence electrons = 6
- Valency of Oxygen = 8-6 = 2.
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