Sagot :
Answer:
1. Mg 12- [Ne]3s^2.
2. K 19- 1s22s22p63s23p64s1.
3. Si 14- 1s22s22p63s23p2
4. Cl 17- 1s22s22p63s23p5
5. Ar 18- 1s22s22p63s23p6
Answer:
1. Mg 12- [Ne]3s^2.
2. K 19- 1s22s22p63s23p64s1.
3. Si 14- 1s22s22p63s23p2
4. Cl 17- 1s22s22p63s23p5
5. Ar 18- 1s22s22p63s23p6