Lead is listed below zinc in the activity series. What will most likely happen when zinc particles are placed in lead nitrate solution?

Zinc lead will form.
Oxygen will evolve.
No reaction will occur.
Zinc nitrate will form.

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!