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Calcium (Ca) has an atomic number of 20. What is calcium's ground-state electron configuration? 1s21p61d101f2 1s21p62s22p63s23p2 1s22s22p63s23p64s2 1s22s22p63s23p63d2

Respuesta :

Electron configuration:

The arrangement of electrons in an atom by a superscript, in each sublevel is known as electron configuration.  

The electronic configuration of Ca is as follows:

Ca: 20

1s22s22p63s23p64s2.


The answer is C) 1s22s22p63s23p64s2