How to make one ball orbit another

So, I am very new to construct, have 0 idea on what is going on in this program. I was given a program to fix a few stuff in, and one of those things was to fix the small ball going too fast around the bigger ball. I'm working on a physics program, where the small ball is the electron and the big one is the nucleus, right now there are 2 balls and 1 small one, and I tried to remove one of the balls but idk how to cuz everything seems to be in one group rather than seperated. So do I make a totally new one or can I save time and work on this one and how?

If the orbit is controlled by physics then to make it be able to orbit slower you need to reduce the gravity force. Or maybe just don’t give physics to the moon and move it with the orbit behavior instead.

There isn't enough information. If you click the electron object, which behaviors does it have? (on the left properties tab)

You can also right-click it and select "Find all references" to find all events. Please post screenshots of all events responsible for electron movement and rotation.