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Transition
elements
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Inner
transition elements
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i.
In the atoms of these elements the last two shells are incompletely filled.
ii.
These elements are placed in groups 3 to 12 in middle of the modern periodic
table.
iii.
They are included in d – block of the modern periodic table.
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i.
In the atoms of these elements the last three shells are incompletely filled.
ii.
These elements are placed in two additional rows (i.e. lanthanides and
actinides) called series, placed at the bottom of the modern periodic table.
iii.
They are included in f - block of
modern periodic table.
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Transition elements Inner transition elements
