Question

Determine the electron configuration for the magnesium atoms electron shell diagram A) 2-3-2 B) 2-8-7 C) 2-8-3 D) 2-8-2

Answer 1

Option D

Step-by-step explanation:

• Magnesium has Atomic no Z=12

Electronic configuration is given by

`\\ \sf\longmapsto 1s^22s^22p^63s^2`

Hence required configuration is 2,8,2