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Which of the following has the highest atomic number?

Which of the following has the highest atomic number? Correct Answer Lanthanum

In the periodic table, when you move down the group, the atomic number increases. In the given options, scandium and titanium belong to the 3d series, cadmium belongs to the 4d series and Lanthanum belongs to the 5d series. Therefore, Lanthanum will have the highest atomic number.

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