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1s² 2s² 2p 3s² 3p5 What is the element
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1s² 2s² 2p 3s² 3p5
What is the element

User Arthur Alvim
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Answer:

1s² 2s² 2p⁶ 3s² 3p⁵ - Number of electrons = 17 = chlorine (Cl) is the right Answer.

User Swap L
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