You and your classmates have been given an electron configuration and need to identify what it is. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 You think this is the electron configuration for krypton, one classmate thinks it the calcium ion and another classmate thinks it's the selenium ion. Who is correct? Who is incorrect? Explain.

Chemistry In Focus
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Author:Tro, Nivaldo J.
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Chapter3: Atoms And Elements
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You and your classmates have been given an electron configuration and need to identify what it is.
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
You think this is the electron configuration for krypton, one classmate thinks it the calcium ion and
another classmate thinks it's the selenium ion. Who is correct? Who is incorrect? Explain.

You and your classmates have been given an electron configuration and need to identify what it is.
15² 25² 2p 3s 3p 4s²3d¹⁰4p6
You think this is the electron configuration for krypton, one classmate thinks it the calcium ion and
another classmate thinks it's the selenium ion. Who is correct? Who is incorrect? Explain.
Transcribed Image Text:You and your classmates have been given an electron configuration and need to identify what it is. 15² 25² 2p 3s 3p 4s²3d¹⁰4p6 You think this is the electron configuration for krypton, one classmate thinks it the calcium ion and another classmate thinks it's the selenium ion. Who is correct? Who is incorrect? Explain.
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