The element californium belongs to a family of:
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In the periodic table, Actinoid element or the actinide element, any of a series of $15$ consecutive chemical elements from actinium to lawrencium $($atomic numbers $(89−103).$ The atomic number of californium is $98$ Let's write an electronic configuration for this. Its electronic configuration is $Rn^{86}7s^25f^{10}$
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