The correct statement(s) about actinides is/are: · ABC26IN0432
Subject: Inorganic Chemistry · Chapter: Lanthanides and Actinides · Topic: Lanthanide And Actinide – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy
The correct statement(s) about actinides is/are:
(a)The trans uranium elements are prepared artificially.
(b)The 5f electrons of actinides are bound less tightly than the 4f electrons.
(c)All the actinides are radioactive.
(d)Actinides do not exhibit actinide contraction.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Answer: (a), (b) and (c) — All transuranium elements are synthetic, 5f electrons are less tightly held than 4f, and every actinide is radioactive. Actinides do show an actinide contraction, so (d) is false.