Question

what is f block in periodic table?

Answer 1

Chemical element- F, symbol is F

Answer 2

The f-block, or f-sub-shell, is a peculiar part of the periodic table that gets very little attention but is highly respected. It contains the elements on the periodic table between atomic numbers 57 - 70 and 89 - 102, which are transition metals. Transition refers to an element's ability to lose and gain electrons. Most elements in the periodic table can do this but not as readily as the transition metals.
                                          
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