What do you understand by combining capacity of the atoms? Explain with examples.
Asked by Topperlearning User | 23rd Jan, 2015, 03:45: PM
An atom of each element has a definite combining capacity, called its valency.
The combining capacity of the atoms i.e. their tendency to react and form molecules with atoms of the same or different elements was thus explained as an attempt to attain a stable octet state. This is done by sharing, gaining or losing electrons.
For example, lithium and sodium atoms contain one electron each in their outermost shell; therefore each one of them can lose one electron to have 8 electrons in their outermost shell. So, they are said to have valency = 1.
Answered by | 23rd Jan, 2015, 05:45: PM
- Write electonic configuration of first 50 elements.
- How can i know the valency of a compond to react it with another elemet to form a chemical reaction? For example - Suppose I have to make . Then i have to first react Carbon with Oxygen then react that compond with calcium. So how will i know the valency of compound formed from reaction of carbon with oxygen. We can know the valency of elements from their atomic number and electronic configuration, but how can i know the valency of compound? Please help,waiting for your reply, Thank you.
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