MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
Which block element from following are known as transition elements?
- A f-block
- B s-block
- C p-block
- D d-block
Answer & Solution
Correct Answer
(D) d-block
Step-by-step Solution
Detailed explanation
Transition elements (also known as transition metals) are elements that have partially filled \(d\) orbitals. IUPAC defines transition elements as an element having a \(\mathrm{d}\) subshell that is partially filled with electrons, or an element that has the ability to form stable cations with an incompletely filled d orbital. In general, any element which corresponds to the d-block of the modern periodic table (which consists of groups 3-12) is considered to be a transition element.
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