Science (9th Grade)
Principles of Electron Configuration
What is the electronic configuration of calcium (Z = 20)?
1s² 2s² 2pn 3s² 3pn 4s²
1s² 2s² 2pn 3s² 3pn 4s²
1s² 2s² 2pn 3s² 3pn
1s² 2s² 2pn 3s² 3pn 4s¹
Next