Diksiyonaryo
A-Z
A
B
C
D
E
F
G
H
I
J
K
L
M
N
Ñ
Ng
O
P
Q
R
S
T
U
V
W
X
Y
Z
protactinium
(pro•tak•tín•yum)
:
radyoaktibo at metalikong element (atomic number 91, symbol Pa).
