hairy cell leukemia a form of chronic leukemia marked by splenomegaly and by an abundance of abnormal large mononuclear cells covered by hairlike villi (hairy cells) in the bone marrow, spleen, liver, and peripheral blood.
A set of orbitals are said to be degenerate if they all have the same energy. This degeneracy can sometimes be lifted by external electric or magnetic fields.
Ligand electrons repel d electrons [edit]. Ligands have lone pairs of electrons that they use to bond to transition metal atoms or ions. The presence of these ligand electrons repels the transition metal's electrons in its d orbitals.igands split d orbitals [edit]. Without ligands, all five d orbitals have equal energy. A complex needs ligands to be coloured. Without ligands, all five d orbitals are equal in energy (degenerate is a word often used here â it simply means of the same energy).