Which of the following is not an actinide?

Question

Which of the following is not an actinide? (A) Curium (B) Californium (C) Uranium (D) Terbium

Tardigrade Admin · Accepted Answer

Terbium is lanthanide as it belongs to 4 f -series having configuration [Xe] 4f9, 6s2 . However, the remaining members belong to 5f -series (actinides).

Q. Which of the following is not an actinide?

Curium

Californium

Uranium

Terbium

Terbium is lanthanide as it belongs to $4 f$ -series having configuration $[X e] 4 f^{9}, 6 s^{2}$ . However, the remaining members belong to $5 f$ -series (actinides).

Q. Which of the following is not an actinide?

Curium

Californium

Uranium

Terbium

Terbium is lanthanide as it belongs to 4f -series having configuration [Xe]4f9,6s2 . However, the remaining members belong to 5f -series (actinides).

Terbium is lanthanide as it belongs to $4 f$ -series having configuration $[X e] 4 f^{9}, 6 s^{2}$ . However, the remaining members belong to $5 f$ -series (actinides).