Transition elements are called transition elements because the electrons in these elements are not in process of filling valence(outermost ) shell instead they are, in case of d-block elements, in process of filling penultimate shell. and in case of f- block elements, electrons are in process of filling next to the penultimate shell.
The transition elements have this name because they represent a transition range in which the lowest total electron energy is achieved by filling the f orbitals of the electron shell below the valence shell rather than filling the rest of the valence shell. After all the noted f orbitals have been filled, the transition is over and addition electrons return to filling the valence shell.
The term "transition metals" is for elements which changes the number of electrons in an inner level of electrons (and thus have a transition) from 8 to 18 or from 18 to 32; I consider this term obsolete and confusing.
Currently the term d-block of the Periodic Table is used.
Those elements are called transition elements
Yes, lanthanide and Actinides are transition elements and they are specifically called inner transition elements.
inner transition elements are those who have their last 3 shells incompletely filled. The f block elements have their last 3 shells incompletly filled . That is why they are also called as inner transition elements. what different between inner transition and outer transition elements
transition elements
Transition Metals! ^-^ http://chemistry.about.com/library/blperiodictable.htm
generally groups 3-12 are called the transition metals.
Transition elements may be defined as those elements which have partialy filled d and f subshells in atomic state so d and f block elements called transition elements.
Lanthanide: The first series of inner transitionelements which goes from cerium to lutetium.
Elements with incomplete valance shell as well as incomplete penultimate shell are called transition elements.
The 38 elements in group 3 through 12 of the periodic table are called Transition Metals.It consist of elements from atomic number 21 to 112. These are also called d block elements.
These chemical elements are called transition metals.
These elements are known as transition metals or d-block elements