Which of the following is not an actinide ?
Curium
Californium
Uranium
Terbium
D.
Terbium
Terbium (Tb) is a lanthanide it belongs to 4f series and electronic configuration is [Xe] 4f9 5d0 6s2 , while curium (Cm) californium (Cf) and uranium (U) are all the actinides .
If hydrogen electrode dipped in two-solution of pH = 3 and pH = 6 and salt bridge is connected , the emf of resulting cell is :
0.177 V
0.3 V
0.052 V
0.104 V