Answered

Write the electron configuration.

1. Mg 12
2. K 19
3. Si 14
4. Cl 17
5. Ar 18​

Sagot :

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Answer:

1. Mg 12- [Ne]3s^2.

2. K 19- 1s22s22p63s23p64s1.

3. Si 14- 1s22s22p63s23p2

4. Cl 17- 1s22s22p63s23p5

5. Ar 18- 1s22s22p63s23p6