Why do the compass needles change direction when the electric current is Flowing

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87