Question

Q.3: Arrange the following elements as per the guidelines in brackets:

[3]

1. Na, Cl, Mg, P

[in decreasing order of atomic size]

2. C, Li, F, N

[in increasing order of electronegativity]

3. Cl, Al, Na, S

[in decreasing order of ionisation potential]​

Answer 1

Explanation:

1. Na, Mg, P, Cl 

2. Li, C, N, F 

3. Na, Al, S, Cl 

4. F, O, C, Li 

5. He, Ne, Ar