Which of the following is a change from a less condensed to a more condensed state of matter? . boiling. evaporating. condensation. melting

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

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!