Why are transition elements called d - b...

Why are transition elements called d - block elements ?

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During the filling of electrons in transition elements, the last electron enters the (n - 1)d - orbital

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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -EXERCISE (VERY SHORT ANSWER-TYPE QUESTIONS)

Why are transition elements called d - block elements ?
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Write the general electronic configuration of the transition elements.
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which of the following are transition elements : Zn, Pd, Cd, Au ?
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How many d - block elements are there in the periodic table ?
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Name the diamagnetic element in the 3d - series.
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What is Lanthanide contraction?
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What happens when ammonium dichromate is heated ?
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Given general electronic configuration of inner transition elements.
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What are ferrous metals ?
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Give an example of disproportionation reaction.
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Name an ore each of Cr and Mn.
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Why are Zn, Cd and Hg not included among transition elements ?
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The magnetic moment of a metal is sqrt(15)BM. How many unpaired electr...
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In case of transition elements of the first series (from Sc to Cu), wh...
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Which among Fe^(2+) & Fe^(3+) salts have higher magnetic moment ?
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Determine whether Ti^(4+) ion is diamagnetic or paramagnetic.
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Why does V(2)O(5) act as a catalyst ?
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