Which of these is the correct electron configuration
notation for a calcium ion?
• 1s 2s 2p 3s 3p6
• 1s²2s22p63s 3p 4s24p6
• 1s²2s22p 3s 3p 4s?
• 1s²2s 2p 3s 3p 4s

Respuesta :

Answer:

1s2,2s2,2p6,3s2,3p6,4s2

Explanation:

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