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Gold (Au) – Element 79 of the periodic table

Gold (symbol Au) is element number 79 of the periodic table and belongs to the “Transition metal” category. Its atomic mass is about 196.97, and its phase under standard conditions is Solid. This element sits in period 6 and group 11 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 32, 18, 1. The short electron configuration of Gold is [Xe] 4f¹⁴ 5d¹⁰ 6s¹. Known uses of Gold include Jewelry, Electronics and Coins.

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Properties of Gold

Atomic number
79
Chemical symbol
Au
Atomic mass
196.97
Category
Transition metal
Period
6
Group
11
Phase
Solid
Protons
79
Electrons
79
Neutrons (approx.)
118
Electron shells
2, 8, 18, 32, 18, 1
Outer-shell electrons
1
Discovered
Prehistoric

Electron configuration of Gold

The electron configuration of Gold (Au), with 79 electrons, is shown below. The last shell (shell 6) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s¹
Short configuration
[Xe] 4f¹⁴ 5d¹⁰ 6s¹
Last shell
6s¹

What is electron configuration and how is it written?

Electron shells of Gold

Distribution of 79 electrons of Gold across shells K to P:

  1. K2
  2. L8
  3. M18
  4. N32
  5. O18
  6. P1

What is a transition metal?

The transition metals are the d-block elements: usually good conductors of heat and electricity, with several oxidation states, and they form colourful compounds and important catalysts.

Uses of Gold

Frequently asked questions about Gold

What is the atomic number of Gold?

The atomic number of Gold (Au) is 79; that is, every atom of it has 79 protons.

What is the electron configuration of Gold?

The electron configuration of Gold (Au) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s¹; in short form it is [Xe] 4f¹⁴ 5d¹⁰ 6s¹, and its last shell is 6s¹.

What is the chemical symbol of Gold?

The chemical symbol of Gold is Au.

Where is Gold located in the periodic table?

Gold is located in period 6 and group 11 and belongs to the “Transition metal” category.

What is the atomic mass of Gold?

The atomic mass of Gold is about 196.97 (atomic mass units).

What is the phase of Gold under normal conditions?

The phase of Gold under standard conditions is Solid.

What are the uses of Gold?

Uses of Gold include Jewelry, Electronics and Coins.

Who discovered Gold?

Gold has been known to humans since prehistoric times and has no single discoverer.

Elements in the same category as Gold (Transition metal)

Palladium (Pd)Silver (Ag)Cadmium (Cd)Hafnium (Hf)Tantalum (Ta)Tungsten (W)Rhenium (Re)Osmium (Os)Iridium (Ir)Platinum (Pt)Mercury (Hg)Rutherfordium (Rf)Dubnium (Db)Seaborgium (Sg)Bohrium (Bh)Hassium (Hs)Meitnerium (Mt)Darmstadtium (Ds)Roentgenium (Rg)Copernicium (Cn)

See all Transition metals

Gold’s group 11 neighbours

Copper (Cu)Silver (Ag)Roentgenium (Rg)

Group 11 of the periodic table