1s2 2s2 2p6 3s2 3p6 4s2.
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what is the electron configuration of a calcium atom whose atomic number is 20
2 answers
1s2 2s2 2p6 3s2 3p6 4s2.
Check it out to make sure this is correct.
Forgot to post the web site where you can check it. http://www.webelements.com/calcium/atoms.html
Check it out to make sure this is correct.
Forgot to post the web site where you can check it. http://www.webelements.com/calcium/atoms.html
3 answers