Question

find out the valency of the following elements given atomic number .
1. element a =8
2.element b=12
3. element c=15
4.d. element =18​

Answer 1

Answer:

2 , 2, 3 , 0 that's right answer

Answer 2

Answer:

1. 2

2. 2

3. 3

4. 0

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