The Lanthanoid that does not show +2 oxidation states is:
The Lanthanoid that does not show +2 oxidation states is:
Option 1 -
Sm
Option 2 -
Gd
Option 3 -
Tm
Option 4 -
Nd
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1 Answer
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Correct Option - 2
Detailed Solution:Sm ⇒ +2, +3 (4f? , 6 s²); Gd ⇒ +3 (4f?5 d¹6 s²)
Tm ⇒ +2 + 3 (4f¹³,6 s²); Nd ⇒ +2, +3, +4 (4f? , 6 s²)
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