IUPAC Names for Elements Above Atomic Number 100

Element Names and Symbols

• Elements can be named after a country, state, or scientist.
• As of now, elements with atomic numbers up to 118 have been discovered and officially named by IUPAC.

IUPAC Nomenclature

• The IUPAC names for elements with Z above 100 are derived by combining roots for digits 0-9 and adding "lum" at the end.
• The roots for digits 0, 1, 2, and 0 are nil, un, bi, and nil, respectively.
• The symbol and name for the element with atomic number 120 would be Ubn and unbinilium, respectively.

Electronic Configurations and the Periodic Table

• An element's location in the Periodic Table reflects the quantum numbers of the last orbital filled.
• The period indicates the value of n for the outermost or valence shell.
• The distribution of electrons into orbitals of an atom is called its electronic configuration.

IUPAC Official Names

• The IUPAC official names for elements with atomic numbers above 100 are shown in Table 3.5.
• Examples of IUPAC official names include Unnilunium (101), Unbinilium (102), Untrinilium (103), and so on.

Classification of Elements and Periodicity in Properties

• New elements are first given a temporary name and symbol, and later, a permanent name and symbol are given by a vote of IUPAC representatives.
• The discovery of new elements requires highly sophisticated and costly equipment and laboratory facilities.
• The IUPAC recommends a systematic nomenclature for new elements until their discovery is proved and officially recognized.