Gold Mass Number

Posted : admin On 1/3/2022

Element Gold - Au

Comprehensive data on the chemical element Gold is provided on this page; including scores of properties, element names in many languages, most known nuclides of Gold. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.

Gold Menu

Convert how many grams ( g ) of gold are in 1 cubic centimeter ( cc - cm3 ). One (cc - cm3) cubic centimeter of gold volume equals nineteen point two eight grams (g) in mass of gold. This gold calculator can be used to change a conversion factor from 1 cubic centimeter cc - cm3 equals = 19.28 grams g exactly. Convert gold measuring units. Neutron Number and Mass Number of Gold. Mass numbers of typical isotopes of Gold are 197. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. Neutron number plus atomic number equals atomic mass number: N+Z=A. Name: Gold Symbol: Au Atomic Number: 79 Atomic Mass: 196.96655 amu Melting Point: 1064.43 °C (1337.5801 K, 1947.9741 °F) Boiling Point: 2807.0 °C (3080.15 K, 5084.6 °F) Number of Protons/Electrons: 79 Number of Neutrons: 118 Classification: Transition Metal Crystal Structure: Cubic Density @ 293 K: 19.32 g/cm 3 Color: Gold Atomic Structure.

Au gold mass number
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Gold atomic mass number

Overview of Gold

  • Atomic Number: 79
  • Group: 11
  • Period: 6
  • Series: Transition Metals

Gold's Name in Other Languages

  • Latin: Aurum
  • Czech: Zlato
  • Croatian: Zlato
  • French: Or
  • German: Gold - s
  • Italian: Oro
  • Norwegian: Gull
  • Portuguese: Ouro
  • Russian: Золото
  • Spanish: Oro
  • Swedish: Guld

Atomic Structure of Gold

  • Atomic Radius: 1.79Å
  • Atomic Volume: 10.2cm3/mol
  • Covalent Radius: 1.34Å
  • Cross Section (Thermal Neutron Capture)σa/barns: 98.7
  • Crystal Structure: Cubic face centered
  • Electron Configuration:
    1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10 6s1
  • Electrons per Energy Level: 2,8,18,32,18,1
    Shell Model
  • Ionic Radius: 0.85Å
  • Filling Orbital: 5d10
  • Number of Electrons (with no charge): 79
  • Number of Neutrons (most common/stable nuclide): 118
  • Number of Protons: 79
  • Oxidation States:3,1
  • Valence Electrons: 5d10 6s1

Chemical Properties of Gold

  • Electrochemical Equivalent: 2.4496g/amp-hr
  • Electron Work Function: 5.1eV
  • Electronegativity: 2.54 (Pauling); 1.42 (Allrod Rochow)
  • Heat of Fusion: 12.55kJ/mol
  • Incompatibilities:
  • Ionization Potential
    • First: 9.225
    • Second: 20.521
  • Valence Electron Potential (-eV): 51
Gold Mass Number

Physical Properties of Gold

  • Atomic Mass Average: 196.9665
  • Boiling Point: 3080K 2807°C 5085°F
  • Coefficient of lineal thermal expansion/K-1: 14.16E-6
  • Conductivity
    Electrical: 0.452 106/cm Ω
    Thermal: 3.17 W/cmK
  • Density: 19.32g/cc @ 300K
  • Description:
    Soft bright yellow transition metal.
  • Elastic Modulus:
    • Bulk: 171/GPa
    • Rigidity: 26/GPa
    • Youngs: 78.5/GPa
  • Enthalpy of Atomization: 364 kJ/mole @ 25°C
  • Enthalpy of Fusion: 12.55 kJ/mole
  • Enthalpy of Vaporization: 324.4 kJ/mole
  • Flammablity Class:
  • Freezing Point:see melting point
  • Hardness Scale
    • Brinell: 2450 MN m-2
    • Mohs: 2.5
    • Vickers: 216 MN m-2
  • Heat of Vaporization: 334.4kJ/mol
  • Melting Point: 1337.73K 1064.58°C 1948.24°F
  • Molar Volume: 10.2 cm3/mole
  • Optical Reflectivity: 95%
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 0.128J/gK
  • Vapor Pressure = [email protected]°C

Regulatory / Health

  • CAS Number
    • 7440-57-5
  • OSHAPermissible Exposure Limit (PEL)
    • No limits set by OSHA
  • OSHA PEL Vacated 1989
    • No limits set by OSHA
  • NIOSHRecommended Exposure Limit (REL)
    • No limits set by NIOSH
  • Levels In Humans:
    Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.
    • Blood/mg dm-3: (0.1-4.2)E-4
    • Bone/p.p.m: 0.016
    • Liver/p.p.m: 0.0004
    • Muscle/p.p.m: n/a
    • Daily Dietary Intake: n/a
    • Total Mass In Avg. 70kg human: 0.2 mg
  • Discovery Year: Unknown
  • Name Origin:
    Gold from old English word geolo (yellow) Au from Latin: aurum (gold).
  • Abundance of Gold:
    • Earth's Crust/p.p.m.: 0.0011
    • Seawater/p.p.m.: 0.00001
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 5.6
  • Sources of Gold:
    Found in quartz veins in in extrusive rocks, with copper ore and native metals. Around 1,400 tons are produced each year world wide. Primary mining areas are South Africa, USA, Canada and Russia.
  • Uses of Gold:
    Very malleable. Used in electronics, jewelry dental crowns and coins. Supposedly around half of the world's supply of gold is stored in the United States Treasury Department's gold depository in Fort Knox Kentucky, which is considered to be one of the most secure buildings in the world.
  • Additional Notes:
    Gold is poorly absorbed by the body. Gold-based anti-arthritics can cause liver and/or kidney damage.

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A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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Kenneth Barbalace. Periodic Table of Elements - Gold - Au. 1995 - 2021. Accessed on-line: 4/25/2021

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Gold Protons

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Number Of Valence Electrons In Gold


What Is Gold Mass Number

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