n1.given the electron configuration of an atom 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ which is it's valence shell?
A.4s¹
B.3p⁶
C.1s²
D.3s
2.What is the valence electron of an atom with an electrons configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
A.1
B.2
C.3
D.4
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n1.given the electron configuration of an atom 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ which is it's valence shell?
A.4s¹
B.3p⁶
C.1s²
D.3s
2.What is the valence electron of an atom with an electrons configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
A.1
B.2
C.3
D.4
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1.given the electron configuration of an atom 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ which is it's valence shell?
2. What is the valence electron of an atom with an electrons configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
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