Write the electron configuration of each of the following actors.
1.Li-3
2. Sr-38
3. S-21
4. O-8
5. Ar-18
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Write the electron configuration of each of the following actors.
1.Li-3
2. Sr-38
3. S-21
4. O-8
5. Ar-18
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Answer:
1. 1s² 2s¹
2. 1s² 2s² 2p^6 3s² 3p^6 3d^10 4s² 4p^6 4d²
3. 1s² 2s² 2p^6 3s² 3p^6 3d³
4. 1s² 2s² 2p⁴
5. 1s² 2s² 2p^6 3s² 3p^6