Gold Atomic Number

Gold: atom sizes. Atomic radius (empirical): 135 pm Molecular single bond covalent radius: 124 (coordination number 2) ppm; van der Waals radius: 245 ppm; More atomc size properties. This is the number of protons in each atom. Each element has a unique atomic number. Hydrogen is the first element and has one proton, so it has an atomic number of 1. Gold has 79 protons in each atom and has an atomic number of 79. Elements in their standard state also have the same number of electrons as protons.

Isotope	Atomic mass (Da)	Isotopic abundance (amount fraction)
¹⁹⁷Au	196.966 570(4)	1

Periodic Table Of Elements Gold

Gold Atomic Number Name

Gold is a monoisotopic element and its atomic weight is determined solely by its isotope ¹⁹⁷Au. The Commission last revised the standard atomic weight of gold in 2017 based on the latest Atomic Mass Evaluation by IUPAP.

Gold Atomic Number 79

SOURCEAtomic weights of the elements: Review 2000 by John R de Laeter et al. Pure Appl. Chem. 2003 (75) 683-800
© IUPAC 2003

CIAAW

Gold Atomic Number 79

Gold Atomic Number Mass

Gold
A_r(Au) = 196.966 570(4) since 2017
The name derives from the Sanskrit jval for 'shine', the Teutonic word gulth for 'shining metal', andthe Anglo-Saxon gold of unknown origin. The symbol Au derives from the Latin aurum, for Aurora, the goddess of dawn. Gold was known and highly valued in prehistoric times.