The Lewis dot notation for two atoms is shown.



Mg is written with two dots on its right. O is written on the right of Mg. There are six dots around O. Two arrows point from the dots near Mg to O.



What is represented by this notation?



Mg gains two protons from O.


Mg donates two protons to O.


Mg gains two electrons from O.


Mg donates two electrons to O.