Electron Configuration Practice In the space below, write the unabbreviated electron configurations of the following elements: Nitrogen _______________________________________________ Sodium _______________________________________________ Iron _______________________________________________ Bromine _______________________________________________ Barium _______________________________________________ Neptunium _______________________________________________ Curium _______________________________________________ In the space below, write the orbital notation for the following elements. Boron Sodium Iron Bromine Neon Oxygen Aluminum In the space below, write the Noble Gas notation of the following elements: Cobalt _______________________________________________ Silver _______________________________________________

Question 1: In the space below, write the unabbreviated electron configurations of the following elements: Nitrogen, Sodium, Iron, Bromine, Barium, Neptunium, Curium

Nitrogen (N): 1s² 2s² 2p³
Sodium (Na): 1s² 2s² 2p⁶ 3s¹
Iron (Fe): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
Bromine (Br): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵
Barium (Ba): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s²
Neptunium (Np): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f⁴
Curium (Cm): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f⁷ 6d¹

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Question 2: In the space below, write the orbital notation for the following elements: Boron, Sodium, Iron, Bromine, Neon, Oxygen, Aluminum

Boron (B):
1s: (↑↓)
2s: (↑↓)
2p: (↑ )( )( )

Sodium (Na):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑↓)(↑↓)
3s: (↑ )

Iron (Fe):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑↓)(↑↓)
3s: (↑↓)
3p: (↑↓)(↑↓)(↑↓)
4s: (↑↓)
3d: (↑↓)(↑ )(↑ )(↑ )(↑ )

Bromine (Br):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑↓)(↑↓)
3s: (↑↓)
3p: (↑↓)(↑↓)(↑↓)
4s: (↑↓)
3d: (↑↓)(↑↓)(↑↓)(↑↓)(↑↓)
4p: (↑↓)(↑↓)(↑ )

Neon (Ne):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑↓)(↑↓)

Oxygen (O):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑ )(↑ )

Aluminum (Al):
1s: (↑↓)
2s: (↑↓)
2p: (↑↓)(↑↓)(↑↓)
3s: (↑↓)
3p: (↑ )( )( )

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Question 3: In the space below, write the Noble Gas notation of the following elements: Cobalt, Silver

Cobalt (Co): [Ar] 4s² 3d⁷
Silver (Ag): [Kr] 5s¹ 4d¹⁰