What's the hybridization of the central atom in OF2?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

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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!