CHARGES
ATOMS
PROTONS
NEUTRONS
ELECTRONS
ATTRACTION
REPULSION
ELECTROSTATICS
DIRECT
ALTERNATING
CURRENT
ELECTRICITY
Q
A
S
D
D
F
Y
U
Q
A
U
P
M
A
S
A
U
N
A
I
O
R
N
T
Z
M
A
T
E
U
Q
E
O
E
R
O
O
O
O
J
C
T
G
Q
S
E
O
R
I
E
C
M
O
M
A
R
R
U
V
I
L
S
T
U
C
S
T
L
P
A
A
E
L
G
L
E
R
C
J
T
T
R
E
C
H
J
I
U
Q
R
C
S
E
E
H
G
H
T
C
I
P
A
E
J
K
T
R
L
L
N
D
I
A
E
O
N
X
A
B
N
R
Z
E
K
I
O
R
P
T
S
H
O
A
Q
V
I
H
Z
I
N
S
C
I
T
A
T
S
O
R
T
C
E
L
E
Q
U
Q
S
I
O
F
R
Y
E
C
I
J
B
A
Z
S
N
O
T
O
R
P
I
Y
E
T
Q
X
V
G
E
N
E
U
T
R
O
N
S
M
Y
