Atoms Diagrams Showing Electron Configurations of Elements

1
Electron Shell Diagrams of Atoms

A neutral atom has the same number of protons, neutrons, and electrons.
A neutral atom has the same number of protons, neutrons, and electrons. KTSDESIGN / Getty Images

It's easier to understand electron configuration and valence if you can actually see the electrons surrounding atoms. Here are atom diagrams for the elements, ordered by increasing atomic number.

For each atom diagram, the element symbol is listed in the nucleus. The electron shells are shown, moving outward from the nucleus. The final ring or shell of electrons contains the typical number of valence electrons for an atom of that element.

Elements are show from atomic number 1 (hydrogen) up to 94 (plutonium). However, it's easy to determine the configuration of electrons for heavier elements by making a chart.

2
Hydrogen Atom Electron Shell Diagram

This diagram of the hydrogen atom depicts the electron shell of hydrogen.
This diagram of the hydrogen atom depicts the electron shell of hydrogen. Greg Robson, Creative Commons License

Reading the diagram: The element atomic number and name are listed in the upper left. The upper right side shows the number of electrons in a neutral atom. Remember, a neutral atom contains the same number of protons and electrons.

The isotope is defined by the number of neutrons in an atom, which might be equal to the number of protons or not.

An ion of an atom is one in which the number of protons and electrons is not the same. If there are more protons than electrons, an atomic ion has a positive charge and is called a cation. If there are more electrons than protons, the ion has a negative charge and is called an anion.

3
Helium Atom Electron Shell Diagram

This diagram of a helium atom shows the electron shell of helium.
This diagram of a helium atom shows the electron shell of helium. Greg Robson, Creative Commons License

4
Lithium Atom Electron Shell Diagram

This diagram of a lithium atom indicates its electron shell.
This diagram of a lithium atom indicates its electron shell. Greg Robson, Creative Commons License

5
Beryllium Atom Electron Shell Diagram

This diagram shows the electron configuration of a beryllium atom.
This diagram shows the electron configuration of a beryllium atom. Greg Robson, Creative Commons License

6
Boron Atom Electron Shell Diagram

This diagram of a boron atom indicates the electron shell of boron.
This diagram of a boron atom indicates the electron shell of boron. Greg Robson, Creative Commons License

7
Carbon Atom Electron Shell Diagram

This diagram shows the electron shell of a carbon atom.
This diagram shows the electron shell of a carbon atom. Greg Robson, Creative Commons License

8
Nitrogen Atom Electron Shell Diagram

This diagram shows the electron shell of a nitrogen atom.
This diagram shows the electron shell of a nitrogen atom. Greg Robson, Creative Commons License

9
Oxygen Atom Electron Shell Diagram

This diagram of an oxygen atom shows the electron shell.
This diagram of an oxygen atom shows the electron shell. Greg Robson, Creative Common License

10
Fluorine Atom Electron Shell Diagram

This diagram shows the electron shell of a fluorine atom.
This diagram shows the electron shell of a fluorine atom. Greg Robson, Creative Commons License

11
Neon Atom Electron Shell Diagram

This diagram shows the electron shell of the neon atom.
This diagram shows the electron shell of the neon atom. Greg Robson, Creative Commons License

12
Sodium Atom Electron Shell Diagram

This diagram shows the electron shell configuration for the sodium atom.
This diagram shows the electron shell configuration for the sodium atom. Greg Robson, Creative Commons License

13
Magnesium Atom Electron Shell Diagram

This diagram shows the electron shell configuration of a magnesium atom.
This diagram shows the electron shell configuration of a magnesium atom. Greg Robson, Creative Commons License

14
Aluminium Atom Electron Shell Diagram

This diagram shows the electron shell configuration for an atom of the element aluminium.
This diagram shows the electron shell configuration for an atom of the element aluminium. Greg Robson, Creative Commons License

15
Silicon Atom Electron Shell Diagram

This diagram shows the electron shell configuration of a silicon atom.
This diagram shows the electron shell configuration of a silicon atom. Greg Robson, Creative Commons License

16
Phosphorus Atom Electron Shell Diagram

This diagram shows the electron shell configuration of a phosphorus atom.
This diagram shows the electron shell configuration of a phosphorus atom. Greg Robson, Creative Commons License

17
Sulfur Atom Electron Shell Diagram

This diagram indicates the electron shell configuration of a sulfur atom.
This diagram indicates the electron shell configuration of a sulfur atom. Greg Robson, Creative Commons License

18
Chlorine Atom Electron Shell Diagram

This diagram shows the electron shell configuration of a chlorine atom.
This diagram shows the electron shell configuration of a chlorine atom. Greg Robson, Creative Commons License

19
Argon Atom Electron Shell Diagram

This diagram shows the electron shell configuration of an argon atom.
This diagram shows the electron shell configuration of an argon atom. Greg Robson, Creative Commons License

20
Potassium Atom Electron Shell Diagram

This diagram shows the electron shell configuration of a potassium atom.
This diagram shows the electron shell configuration of a potassium atom. Greg Robson, Creative Commons License

21
Calcium Atom Electron Shell Diagram

This diagram of a calcium atom shows the electron shell.
This diagram of a calcium atom shows the electron shell. Greg Robson,Creative Commonns License

22
Scandium Atom Electron Shell Diagram

This diagram of a scandium atom shows the electron shell.
This diagram of a scandium atom shows the electron shell. Greg Robson,Creative Commonns License

23
Titanium Atom Electron Shell Diagram

This diagram of a titanium atom shows the electron shell.
This diagram of a titanium atom shows the electron shell. Greg Robson,Creative Commonns License

24
Vanadium Atom Electron Shell Diagram

This diagram of a vanadium atom shows the electron shell.
This diagram of a vanadium atom shows the electron shell. Greg Robson,Creative Commonns License

25
Chromium Atom Electron Shell Diagram

This diagram of a chromium atom shows the electron shell.
This diagram of a chromium atom shows the electron shell. Greg Robson,Creative Commonns License

26
Manganese Atom Electron Shell Diagram

This diagram of a manganese atom shows the electron shell.
This diagram of a manganese atom shows the electron shell. Greg Robson,Creative Commonns License

27
Iron Atom Electron Shell Diagram

This diagram of an iron atom shows the electron shell.
This diagram of an iron atom shows the electron shell. Greg Robson,Creative Commonns License

28
Cobalt Atom Electron Shell Diagram

This diagram of a cobalt atom shows the electron shell.
This diagram of a cobalt atom shows the electron shell. Greg Robson,Creative Commonns License

29
Nickel Atom Electron Shell Diagram

This diagram of a nickel atom shows the electron shell.
This diagram of a nickel atom shows the electron shell. Greg Robson,Creative Commonns License

30
Copper Atom Electron Shell Diagram

This diagram of a copper atom shows the electron shell.
This diagram of a copper atom shows the electron shell. Greg Robson,Creative Commonns License

31
Zinc Atom Electron Shell Diagram

This diagram of a zinc atom shows the electron shell.
This diagram of a zinc atom shows the electron shell. Greg Robson,Creative Commonns License

32
Gallium Atom Electron Shell Diagram

This diagram of a gallium atom shows the electron shell.
This diagram of a gallium atom shows the electron shell. Greg Robson,Creative Commonns License

33
Germanium Atom Electron Shell Diagram

This diagram of a germanium atom shows the electron shell.
This diagram of a germanium atom shows the electron shell. Greg Robson,Creative Commonns License

34
Arsenic Atom Electron Shell Diagram

This diagram of an arsenic atom shows the electron shell.
This diagram of an arsenic atom shows the electron shell. Greg Robson,Creative Commonns License

35
Selenium Atom Electron Shell Diagram

This diagram of a selenium atom shows the electron shell.
This diagram of a selenium atom shows the electron shell. Greg Robson,Creative Commonns License

36
Bromine Atom Electron Shell Diagram

This diagram of a bromine atom shows the electron shell.
This diagram of a bromine atom shows the electron shell. Greg Robson,Creative Commonns License

37
Krypton Atom Electron Shell Diagram

This diagram of a krypton atom shows the electron shell.
This diagram of a krypton atom shows the electron shell. Greg Robson,Creative Commonns License

38
Rubidium Atom Electron Shell Diagram

This diagram of a rubidium atom shows the electron shell.
This diagram of a rubidium atom shows the electron shell. Greg Robson,Creative Commonns License

39
Strontium Atom Electron Shell Diagram

This diagram of a strontium atom shows the electron shell.
This diagram of a strontium atom shows the electron shell. Greg Robson,Creative Common License

40
Yttrium Atom Electron Shell Diagram

This diagram of a yttrium atom shows the electron shell.
This diagram of a yttrium atom shows the electron shell. Greg Robson,Creative Commonns License

41
Zirconium Atom Electron Shell Diagram

This diagram of a zirconium atom shows the electron shell.
This diagram of a zirconium atom shows the electron shell. Greg Robson,Creative Commonns License

42
Niobium Atom Electron Shell Diagram

This diagram of a niobium atom shows the electron shell.
This diagram of a niobium atom shows the electron shell. Greg Robson,Creative Commonns License

43
Molybdenum Atom Electron Shell Diagram

This diagram of a molybdenum atom shows the electron shell.
This diagram of a molybdenum atom shows the electron shell. Greg Robson,Creative Common License

44
Technetium Atom Electron Shell Diagram

This diagram of a technetium atom shows the electron shell.
This diagram of a technetium atom shows the electron shell. Greg Robson,Creative Commonns License

45
Ruthenium Atom Electron Shell Diagram

This diagram of a ruthenium atom shows the electron shell.
This diagram of a ruthenium atom shows the electron shell. Greg Robson,Creative Commonns License

46
Rhodium Atom Electron Shell Diagram

This diagram of a rhodium atom shows the electron shell.
This diagram of a rhodium atom shows the electron shell. Greg Robson,Creative Commonns License

47
Palladium Atom Electron Shell Diagram

This diagram of a palladium atom shows the electron shell.
This diagram of a palladium atom shows the electron shell. Greg Robson,Creative Commonns License

48
Silver Atom Electron Shell Diagram

This diagram of a silver atom shows the electron shell.
This diagram of a silver atom shows the electron shell. Greg Robson,Creative Commonns License

49
Cadmium Atom Electron Shell Diagram

This diagram of a cadmium atom shows the electron shell.
This diagram of a cadmium atom shows the electron shell. Greg Robson,Creative Commonns License

50
Indium Atom Electron Shell Diagram

This diagram of an indium atom shows the electron shell.
This diagram of an indium atom shows the electron shell. Greg Robson,Creative Commonns License

51
Tin Atom Electron Shell Diagram

This diagram of a tin atom shows the electron shell.
This diagram of a tin atom shows the electron shell. Greg Robson,Creative Commonns License

52
Antimony Atom Electron Shell Diagram

This diagram of an antimony atom shows the electron shell.
This diagram of a antimony atom shows the electron shell.This diagram of an antimony atom shows the electron shell. Greg Robson,Creative Commonns License

53
Tellurium Atom Electron Shell Diagram

This diagram of a tellurium atom shows the electron shell.
This diagram of a tellurium atom shows the electron shell. Greg Robson,Creative Commonns License

54
Iodine Atom Electron Shell Diagram

This diagram of an iodine atom shows the electron shell.
This diagram of a iodine atom shows the electron shell.This diagram of an iodine atom shows the electron shell. Greg Robson,Creative Commonns License

55
Xenon Atom Electron Shell Diagram

This diagram of a xenon atom shows the electron shell.
This diagram of a xenon atom shows the electron shell. Greg Robson,Creative Commonns License

56
Caesium Atom Electron Shell Diagram

This diagram of a caesium atom shows the electron shell.
This diagram of a caesium atom shows the electron shell. Greg Robson,Creative Commonns License

57
Barium Atom Electron Shell Diagram

This diagram of a barium atom shows the electron shell.
This diagram of a barium atom shows the electron shell. Greg Robson,Creative Commonns License

58
Lanthanum Atom Electron Shell Diagram

This diagram of a lanthanum atom shows the electron shell.
This diagram of a lanthanum atom shows the electron shell. Greg Robson,Creative Commonns License

59
Cerium Atom Electron Shell Diagram

This diagram of a cerium atom shows the electron shell.
This diagram of a cerium atom shows the electron shell. Greg Robson,Creative Commonns License

60
Praseodymium Atom Electron Shell Diagram

This diagram of a praseodymium atom shows the electron shell.
This diagram of a praseodymium atom shows the electron shell. Greg Robson,Creative Commonns License

61
Neodymium Atom Electron Shell Diagram

This diagram of a neodymium atom shows the electron shell.
This diagram of a neodymium atom shows the electron shell. Greg Robson,Creative Commonns License

62
Promethium Atom Electron Shell Diagram

This diagram of a promethium atom shows the electron shell.
This diagram of a promethium atom shows the electron shell. Greg Robson,Creative Commonns License

63
Samarium Atom Electron Shell Diagram

This diagram of a samarium atom shows the electron shell.
This diagram of a samarium atom shows the electron shell. Greg Robson,Creative Commonns License

64
Europium Atom Electron Shell Diagram

This diagram of an europium atom shows the electron shell.
This diagram of a europium atom shows the electron shell.This diagram of an europium atom shows the electron shell. Greg Robson,Creative Commonns License

65
Gadolinium Atom Electron Shell Diagram

This diagram of a gadolinium atom shows the electron shell.
This diagram of a gadolinium atom shows the electron shell. Greg Robson,Creative Commonns License

66
Terbium Atom Electron Shell Diagram

This diagram of a terbium atom shows the electron shell.
This diagram of a terbium atom shows the electron shell. Greg Robson,Creative Commonns License

67
Dysprosium Atom Electron Shell Diagram

This diagram of a dysprosium atom shows the electron shell.
This diagram of a dysprosium atom shows the electron shell. Greg Robson,Creative Commonns License

68
Holmium Atom Electron Shell Diagram

This diagram of a holmium atom shows the electron shell.
This diagram of a holmium atom shows the electron shell. Greg Robson,Creative Commonns License

69
Erbium Atom Electron Shell Diagram

This diagram of a erbium atom shows the electron shell.
This diagram of a erbium atom shows the electron shell. Greg Robson,Creative Commonns License

70
Thulium Atom Electron Shell Diagram

This diagram of a thulium atom shows the electron shell.
This diagram of a thulium atom shows the electron shell. Greg Robson,Creative Commonns License

71
Ytterbium Atom Electron Shell Diagram

This diagram of a ytterbium atom shows the electron shell.
This diagram of a ytterbium atom shows the electron shell. Greg Robson,Creative Commonns License

72
Lutetium Atom Electron Shell Diagram

This diagram of a lutetium atom shows the electron shell.
This diagram of a lutetium atom shows the electron shell. Greg Robson,Creative Commonns License

73
Hafnium Atom Electron Shell Diagram

This diagram of a hafnium atom shows the electron shell.
This diagram of a hafnium atom shows the electron shell. Greg Robson,Creative Commonns License

74
Tantalum Atom Electron Shell Diagram

This diagram of a tantalum atom shows the electron shell.
This diagram of a tantalum atom shows the electron shell. Greg Robson,Creative Commonns License

75
Tungsten Atom Electron Shell Diagram

This diagram of a tungsten atom shows the electron shell.
This diagram of a tungsten atom shows the electron shell. Greg Robson,Creative Commonns License

76
Rhenium Atom Electron Shell Diagram

This diagram of a rhenium atom shows the electron shell.
This diagram of a rhenium atom shows the electron shell. Greg Robson,Creative Commonns License

77
Osmium Atom Electron Shell Diagram

This diagram of an osmium atom shows the electron shell.
This diagram of an osmium atom shows the electron shell. Greg Robson,Creative Commonns License

78
Iridium Atom Electron Shell Diagram

This diagram of an iridium atom shows the electron shell.
This diagram of an iridium atom shows the electron shell. Greg Robson,Creative Commonns License

79
Platinum Atom Electron Shell Diagram

This diagram of a platinum atom shows the electron shell.
This diagram of a platinum atom shows the electron shell. Greg Robson,Creative Commonns License

80
Gold Atom Electron Shell Diagram

This diagram of a gold atom shows the electron shell.
This diagram of a gold atom shows the electron shell. Greg Robson,Creative Commonns License

81
Mercury Atom Electron Shell Diagram

This diagram of a mercury atom shows the electron shell.
This diagram of a mercury atom shows the electron shell. Greg Robson,Creative Commonns License

82
Thallium Atom Electron Shell Diagram

This diagram of a thallium atom shows the electron shell.
This diagram of a thallium atom shows the electron shell. Greg Robson,Creative Commonns License

83
Lead Atom Electron Shell Diagram

This diagram of a lead atom shows the electron shell.
This diagram of a lead atom shows the electron shell. Greg Robson,Creative Commonns License

84
Bismuth Atom Electron Shell Diagram

This diagram of a bismuth atom shows the electron shell.
This diagram of a bismuth atom shows the electron shell. Greg Robson,Creative Commonns License

85
Polonium Atom Electron Shell Diagram

This diagram of a polonium atom shows the electron shell.
This diagram of a polonium atom shows the electron shell. Greg Robson,Creative Commonns License

86
Astatine Atom Electron Shell Diagram

This diagram of an astatine atom shows the electron shell.
This diagram of a astatine atom shows the electron shell.This diagram of an astatine atom shows the electron shell. Greg Robson,Creative Commonns License

87
Radon Atom Electron Shell Diagram

This diagram of a radon atom shows the electron shell.
This diagram of a radon atom shows the electron shell. Greg Robson,Creative Commonns License

88
Francium Atom Electron Shell Diagram

This diagram of a francium atom shows the electron shell.
This diagram of a francium atom shows the electron shell. Greg Robson,Creative Commonns License

89
Radium Atom Electron Shell Diagram

Electron shell diagram for radium.
Electron shell diagram for radium. Greg Robson

90
Actinium Atom Electron Shell Diagram

This diagram of an actinium atom shows the electron shell.
This diagram of an actinium atom shows the electron shell. Greg Robson,Creative Common License

91
Thorium Atom Electron Shell Diagram

This diagram of a thorium atom shows the electron shell.
This diagram of a thorium atom shows the electron shell. Greg Robson,Creative Commonns License

92
Protactinium Atom Electron Shell Diagram

This diagram of a protactinium atom shows the electron shell.
This diagram of a protactinium atom shows the electron shell. Greg Robson,Creative Commonns License

93
Uranium Atom Electron Shell Diagram

This diagram of a uranium atom shows the electron shell.
This diagram of a uranium atom shows the electron shell. Greg Robson,Creative Commonns License

94
Neptunium Atom Electron Shell Diagram

Electron shell diagram of neptunium.
Electron shell diagram of neptunium. Greg Robson

95
Plutonium Atom Electron Shell Diagram

This diagram of a plutonium atom shows the electron shell.
This diagram of a plutonium atom shows the electron shell. Greg Robson,Creative Commonns License