Why is the octet rule important in chemistry?
1 answer:
<h2>To determine valency.</h2>
Explanation:
Octet rule is one of the most important rules in the chemistry which says that atom becomes stable when they have eight electrons in their last shell.
All atoms try to have a complete valence shell.This may happen through transfer of electrons or through sharing of electrons.
Octet rule is used most of the times to determine the valency of elements.
If a atom has electrons in its valence shell,most likely it will have a valency of
.This is because it will get
electrons due to transfer and complete a octet.
Octet rule also explains the non reactivity of the inert gases.
Since they have complete octet,they are already stable.
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Answer:
Answer:
Explanation: The strengths of the inter molecular forces varies as follows -
The normal boiling point of CSe2 is 125°C and that of CS2 is 116°C, which explains the trend that as we move down the group, the boiling point of e compound increases as the size increases.
This usually happens because larger and heavier atoms have a tendency to exhibit greater inter molecular strengths due to the increase in size . As the size increases, the valence shell electrons move far away from the nucleus, thus has a greater tendency to attract the temporary dipoles.
And larger the inter molecular forces, more tightly the electrons will be held to each other and thus more thermal energy would be required to break the bonds between them.