In Lanthanides the last electron is being progressively added in the 4f orbital. This includes elements from Cerium (58) to Lutetium (71). The electronic configuration of the antepenultimate orbit of Lanthanides elements is 4s2p6d10f1−14.Q .Lanthanides and Actinides belongs to _____

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In Lanthanides the last electron is being progressively added in the 4f orbital. This includes elements from Cerium (58) to Lutetium (71). The electronic configuration of the antepenultimate orbit of Lanthanides elements is ${4s}^{2} p^{6} d^{10} f^{1 - 14}$ .

Q .Lanthanides and Actinides belongs to ______ group in the periodic table

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answer is C.

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