Question

Write the electronic configuration of 11-20 elements
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Answer 1

Answer:

11 Sodium [Ne] 3s1

12 Magnesium [Ne] 3s2

13 Aluminum [Ne] 3s23p1

14 Silicon [Ne] 3s23p2

15 Phosphorus [Ne] 3s23p3

16 Sulfur [Ne] 3s23p4

17 Chlorine [Ne] 3s23p5

18 Argon [Ne] 3s23p6

19 Potassium [Ar] 4s1

20 Calcium [Ar] 4s2

Answer 2

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ATOMIC STRUCTURE 3.4 - Electron Configurations of Atoms

Name Atomic Number Electron Configuration

Sodium 11 1s2 2s22p63s1

Magnesium 12 1s2 2s22p63s2

Aluminum 13 1s2 2s22p63s23p1

Silicon 14 1s2 2s22p63s23p2

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