Question

Very Short Answer Questions.
1. Write the valencies of these elements: Na, C, Al and o​

Answer 1

Explanation:

c=4

Na=1

O=2

Al=3

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Answer 2

Answer:

1

4

3

2

Explanation:

as valency is define as the number of electrons required by an element to get the noble gas configuration...or to attain stability

example: Na has 11 electrons and it's electronic configuration is 2,8,1.........to get staible Na will loss it's one of electron so it's valency is 1