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Explore TopicChoose the Best Answer
A
Iron
B
Sodium
C
Calcium
D
Helium
Understanding the Answer
Let's break down why this is correct
Answer
Transition metals are elements that have partially filled d orbitals, which gives them many unique chemical properties. In the periodic table, these are found mainly in the central block, especially groups 3 through 12. Among common choices, iron (Fe) and gold (Au) are classic examples of transition metals because they have d electrons that can be lost or shared in reactions. For instance, iron can lose two electrons to form Fe²⁺, a typical transition‑metal ion that participates in many biological processes. Thus, if one of the listed elements is iron or gold, that one would be the transition metal.
Detailed Explanation
It sits in the middle of the table, the d-block, which holds metals that can form different colored compounds. Other options are incorrect because This metal is in the first column of the table and is known for being very reactive with water; This metal is found in the second column of the table, not in the d-block.
Key Concepts
transition metals.
Topic
Periodic Table Structure
Difficulty
easy level question
Cognitive Level
understand
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