1) K²L⁸M⁸N¹
2) 1s²2s²2p⁶3s²3p⁶4s¹
3) [Ar] 4s¹
4) W załączniku
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1) K²L⁸M⁸N¹
2) 1s²2s²2p⁶3s²3p⁶4s¹
3) [Ar] 4s¹
4) W załączniku