How many electrons are located in the energy level with the next to lowest amount of energy? Use the drawing of the Sodium atom below to answer the question.
E
E
E
E
PP PVC
N°
No No
NO
P N°
E
ليا
E
P
P
p. No
P
pi Nopi
Tvirve pivo
بيا |
E
بيا
(ய்
E
E
in
E
оа
Ob
1
2
Ос
Od
11

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.