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Answer:

1. 11 Na

1s2 2s2 2p6 3s1

or the electronic configuration with sub orbitals which is

1s2 2s2 2px2 2py2 2pz2 3s1

2. 7 N

1s2 2s2 2p3

or the electronic configuration with the suborbitals which is

1s2 2s2 2px1 2py1 2pz1

3. 17 Cl

1s2 2s2 2p6 3s2 3p5

or the electronic configuration with the sub orbitals which is

1s2 2s2 2px2 2py2 2pz2 3s2 3px2 3py2 3pz1

4. 13 Al

1s2 2s2 2p6 3s2 3p1

or the electronic configuration with the suborbitals which is

1s2 2s2 2px2 2py2 2pz2 3s1

5. 21 Sc

1s2 2s2 2p6 3s2 3p6 4s2 3d1

or the electronic configuration with the suborbitals which is

1s2 2s2 2px2 2py2 2pz2 3s2 3px2 3py2 3pz2 4s2 3dxy1