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Answer the following The atomic number of an element is 90. Is this element diamagnetic or paramagnetic? - Chemistry

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Answer the following

The atomic number of an element is 90. Is this element diamagnetic or paramagnetic?

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Solution

The electronic configuration of element with atomic number = 90 is [Rn] 5f0 6d2 7s2 . There are two unpaired electrons in the 6d orbital of the element. Hence, it is paramagnetic.

Concept: Inner Transition (f-block) Elements: Lanthanoids and Actinoids
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Balbharati Chemistry 12th Standard HSC Maharashtra State Board
Chapter 8 Transition and Inner transition Elements
Exercise | Q 2.11 | Page 191
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