ChemistryMediumHigh School (11–12)The d- and f-Block Elements › Lanthanoids and Actinoids (f-Block)NEETA-LevelIB
Created by StemPy LabSuccessive oxidation states of a transition element differ by one unit, and those of a p-block element by two. This is mainly because
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← How many of the following statements are correct? (1) The 4f electrons are held deep inside the atom. (2) The contraction is greater at each step in the actinoids than in the lanthanoids. (3) The basic strength of the hydroxides falls from La to Lu. (4) Every lanthanoid shows the +2 state.An orange solution of potassium dichromate turns yellow when alkali is added. What happens to the chromium? →
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