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Name the element which lies in group IA and 3rd period. What is the valency of it and why?​
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Name the element which lies in group IA and 3rd period. What is the valency of it and why?​

User Moli
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1 Answer

4 votes

Answer:

Na valency 1

Step-by-step explanation:

Na -sodium.

This element is in the 1A group, so it has 1 electron on the last (valent) level.

So, only 1 electron can participate in forming chemical bond, and therefore the valency of Na is 1.

User Neil Goodman
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