Which of the following elements does not belong to the f-block of elements?
Correct answer: D. Osmium
- A. Uranium
- B. Samarium
- C. Thorium
- D. Osmium
Explanation
All the elements belong in f-block except Osmium which belongs to the d-block.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
Practise Transition Elements
531 free Transition Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Transition Elements questions
In movies during the fight, a blood-red solution is used as artificial blood. Which of the following complex ions is used for this solution?
To differentiate between the white ppt of AgCl and off-white ppt of AgBr we use:
Ethylenediamine diacetate is
Fe is precipitated out when Mg strip is dipped in
The color of Zn2+ compounds is:
The transition element which shows fixed 2+ oxidation state in its compound is: