Element characteristics
Announce inner transition elements
Last Fill F Electronics , other Electronic layer (n-2) f1-14 (n-1) d0-2ns2 Element of zone f (fblock elements)。 They have identical outermost and secondary outer electronic structures.
Include elements
Announce include Lanthanide [ lanthanum (La), cerium (Ce) praseodymium (Pr)、 neodymium (Nd), promethium (Pm) samarium (Sm)、 europium (Eu), gadolinium (Gd), terbium (Tb) dysprosium (Dy), Holmium (Ho) erbium (Er)、 Thulium (Tm)、 Ytterbium (Yb), Lutetium (Lu)] and Actinide element [ Actinium (Ac), Thorium (Th) Protactinium (Pa), uranium (U) Neptunium (Np)、 plutonium (Pu)、 Americium (Am), curium (Cm) Berkeleton (Bk)、 Californium (Cf), einsteinium (Es) Of (Fm)、 Extra (Md), Noi (No) Lawrencium (Lr)]。 Position in the table
Announce They each lined up in a row periodic table of the elements Below. Elements 58~71 in the periodic table are called transition elements within 4f, and elements 90~103 are called transition elements within 5f