What is the valency of SO3
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The valency of SO3 is +6
How do we find out the valency?
- The valency of a compound is known by finding out the valency of individual atoms involved in that compound.
- For example, if we talk about SO3, we know that two atoms are involved in the compound i.e. sulfur and oxygen.
- So, if we have a look at these atoms separately, we know that sulfur has 6 electrons in the outermost shell and needs only 2 electrons to complete its outermost shell. In this case, its valency becomes -2.
- But in some cases, it can donate all of its 6 electrons to complete another atom's outermost shell. in this case, its valency becomes +6.
What is the valency in SO3?
- In SO3, as we know that oxygen has a tendency to accept 2 electrons to complete its outermost shell because it has 6 of its own.
- Therefore, sulfur provides those 6 electrons to 3 oxygen atoms. Each gets two.
- Therefore, the overall valency of sulfur atoms in SO3 is +6.
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