Throw a paper ball towards a hard wall. a) Did the wall apply force on the ball? If yes, then what is the name of the force?
b) What are the effects of the force applied by the wall

please help..!
also if possible could you give the explanation too??

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.