Atomic size increase down the group but 4th group of the periodic table zr ,hf almost the same atomic size
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Due to lanthanoid contraction.
As after lanthanum electron filling take place in f subshell.
Electrons present in f subshell didn't do good shielding due to which with the increasing atomic number or increasing effective nuclear charge size gets constricted and size of Halfenium and Zirconium becomes almost equal.
hope u like it
As after lanthanum electron filling take place in f subshell.
Electrons present in f subshell didn't do good shielding due to which with the increasing atomic number or increasing effective nuclear charge size gets constricted and size of Halfenium and Zirconium becomes almost equal.
hope u like it
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