Why do diatomic molecules form?!! :((

Answer 1

Let's use H-H as an example. The electron dot structure of H is H. so each H has one electron in its outside shell. It wants two. The easy way to do that is for each H to share its one electron with each other so it ends up as H:H; this way each H atom "sees" two electrons in its orbit so each thinks its orbit is full.I hope this helps but if you have further questions please don't hesitate to ask.