mariamendez11 mariamendez11
  • 08-03-2017
  • Physics
contestada

What is the electron configuration for a calcium atom?

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vanemed001
vanemed001 vanemed001
  • 08-03-2017
i believe its (AR) 4rs . because calcuium is a chemical element with symbol Ca and atomic number 20. which calcium is soft gray group 2 alkaline earth metal, which is earths fifth most abundant element by mass in earth's crust 
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mariamathew2004 mariamathew2004
  • 08-03-2017
 I think it is [Ar] 4s2
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