Question

question 8 (1 point)
how many dots would be placed around the lewis dot structure for the element magnesium (mg)?
o a 1
o b 2
o c 3
o d 4

Explanation:

Lewis dot structures use dots to represent valence electrons. Magnesium (Mg) has an atomic number of 12. Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}\). The outermost (valence) shell is the 3rd shell, and it has 2 electrons in the \(3s\) sub - shell. So, the number of dots in the Lewis dot structure for Mg is equal to the number of valence electrons.

Answer:

B. 2