Germanium (Ge) is a grey metalloid that has the atomic number 32 in the periodic table. It is located in Group 14 of the periodic table. It has the symbol Ge. Atomic number (number of protons in the nucleus): 32; Atomic symbol (on the periodic table of elements): Ge; Atomic weight (average mass of the atom): 72.630.
Atomic weight: 72.61. Average concentration in ocean: 75 pmol/kg. Residence time: 20,000 years. Distribution in ocean. Ge has a nutrient-like vertical profile with concentrations that increase with depth ( data ). The concentration is very highly correlated with that of Si, which lies above Ge in the periodic table. Germanium is a substance consisting of atoms which all have the same number of protons. The atomic number of germanium is 32 i.e. Ge I Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 1 0 4s 2 4p 2 3 P 0 Ionization energy 63713.24 cm-1 (7.89943 eV) Ref. SM93b Ge II Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 1 0 4s 2 4p 2 P° 1 / 2 Ionization energy 128521.3 cm-1 (15.93461 eV) Ref.
The elements of the periodic table sorted by atomic mass
click on any element's name for further information on chemical properties, environmental data or health effects.
This list contains the 118 elements of chemistry.
The chemical elements of the periodic chart sorted by: | Atomic Mass | Name chemical element | Symbol | Atomic number |
- Name alphabetically | 1.0079 | Hydrogen | H | 1 |
- Atomic number | 4.0026 | Helium | He | 2 |
- Symbol | 6.941 | Lithium | Li | 3 |
- Atomic Mass | 9.0122 | Beryllium | Be | 4 |
- Electronegativity | 10.811 | Boron | B | 5 |
- Density | 12.0107 | Carbon | C | 6 |
- Melting point | 14.0067 | Nitrogen | N | 7 |
- Boiling point | 15.9994 | Oxygen | O | 8 |
- Vanderwaals radius | 18.9984 | Fluorine | F | 9 |
- Year of discovery | 20.1797 | Neon | Ne | 10 |
- Inventor surname | 22.9897 | Sodium | Na | 11 |
- Elements in earthcrust | 24.305 | Magnesium | Mg | 12 |
- Elements in human body | 26.9815 | Aluminum | Al | 13 |
- Covalenz radius | 28.0855 | Silicon | Si | 14 |
- Ionization energy | 30.9738 | Phosphorus | P | 15 |
For chemistry students and teachers: The tabular chart on the right is arranged by Atomic mass (weight). The lightest chemical element is Hydrogen and the heaviest is Hassium. The unity for atomic mass is gram per mol. Please note that the elements do not show their natural relation towards each other as in the Periodic system. There you can find the metals, semi-conductor(s), non-metal(s), inert noble gas(ses), Halogens, Lanthanoides, Actinoids (rare earth elements) and transition metals. | 32.065 | Sulfur | S | 16 |
35.453 | Chlorine | Cl | 17 | |
39.0983 | Potassium | K | 19 | |
39.948 | Argon | Ar | 18 | |
40.078 | Calcium | Ca | 20 | |
44.9559 | Scandium | Sc | 21 | |
47.867 | Titanium | Ti | 22 | |
50.9415 | Vanadium | V | 23 | |
51.9961 | Chromium | Cr | 24 | |
54.938 | Manganese | Mn | 25 | |
55.845 | Iron | Fe | 26 | |
58.6934 | Nickel | Ni | 28 | |
58.9332 | Cobalt | Co | 27 | |
63.546 | Copper | Cu | 29 | |
65.39 | Zinc | Zn | 30 | |
69.723 | Gallium | Ga | 31 | |
72.64 | Germanium | Ge | 32 | |
74.9216 | Arsenic | As | 33 | |
78.96 | Selenium | Se | 34 | |
79.904 | Bromine | Br | 35 | |
83.8 | Krypton | Kr | 36 | |
85.4678 | Rubidium | Rb | 37 | |
87.62 | Strontium | Sr | 38 | |
88.9059 | Yttrium | Y | 39 | |
91.224 | Zirconium | Zr | 40 | |
92.9064 | Niobium | Nb | 41 | |
95.94 | Molybdenum | Mo | 42 | |
98 | Technetium | Tc | 43 | |
101.07 | Ruthenium | Ru | 44 | |
102.9055 | Rhodium | Rh | 45 | |
106.42 | Palladium | Pd | 46 | |
107.8682 | Silver | Ag | 47 | |
112.411 | Cadmium | Cd | 48 | |
114.818 | Indium | In | 49 | |
118.71 | Tin | Sn | 50 | |
121.76 | Antimony | Sb | 51 | |
126.9045 | Iodine | I | 53 | |
127.6 | Tellurium | Te | 52 | |
131.293 | Xenon | Xe | 54 | |
132.9055 | Cesium | Cs | 55 | |
137.327 | Barium | Ba | 56 | |
138.9055 | Lanthanum | La | 57 | |
140.116 | Cerium | Ce | 58 | |
140.9077 | Praseodymium | Pr | 59 | |
144.24 | Neodymium | Nd | 60 | |
145 | Promethium | Pm | 61 | |
150.36 | Samarium | Sm | 62 | |
151.964 | Europium | Eu | 63 | |
157.25 | Gadolinium | Gd | 64 | |
158.9253 | Terbium | Tb | 65 | |
162.5 | Dysprosium | Dy | 66 | |
164.9303 | Holmium | Ho | 67 | |
167.259 | Erbium | Er | 68 | |
168.9342 | Thulium | Tm | 69 | |
173.04 | Ytterbium | Yb | 70 | |
174.967 | Lutetium | Lu | 71 | |
178.49 | Hafnium | Hf | 72 | |
180.9479 | Tantalum | Ta | 73 | |
183.84 | Tungsten | W | 74 | |
186.207 | Rhenium | Re | 75 | |
190.23 | Osmium | Os | 76 | |
192.217 | Iridium | Ir | 77 | |
195.078 | Platinum | Pt | 78 | |
196.9665 | Gold | Au | 79 | |
200.59 | Mercury | Hg | 80 | |
204.3833 | Thallium | Tl | 81 | |
207.2 | Lead | Pb | 82 | |
208.9804 | Bismuth | Bi | 83 | |
209 | Polonium | Po | 84 | |
210 | Astatine | At | 85 | |
222 | Radon | Rn | 86 | |
223 | Francium | Fr | 87 | |
226 | Radium | Ra | 88 | |
227 | Actinium | Ac | 89 | |
231.0359 | Protactinium | Pa | 91 | |
232.0381 | Thorium | Th | 90 | |
237 | Neptunium | Np | 93 | |
238.0289 | Uranium | U | 92 | |
243 | Americium | Am | 95 | |
244 | Plutonium | Pu | 94 | |
247 | Curium | Cm | 96 | |
247 | Berkelium | Bk | 97 | |
251 | Californium | Cf | 98 | |
252 | Einsteinium | Es | 99 | |
257 | Fermium | Fm | 100 | |
258 | Mendelevium | Md | 101 | |
259 | Nobelium | No | 102 | |
261 | Rutherfordium | Rf | 104 | |
262 | Lawrencium | Lr | 103 | |
262 | Dubnium | Db | 105 | |
264 | Bohrium | Bh | 107 | |
266 | Seaborgium | Sg | 106 | |
268 | Meitnerium | Mt | 109 | |
272 | Roentgenium | Rg | 111 | |
277 | Hassium | Hs | 108 | |
Darmstadtium | Ds | 110 | ||
Copernicium | Cn | 112 | ||
Nihonium | Nh | 113 | ||
Flerovium | Fl | 114 | ||
Moscovium | Mc | 115 | ||
Livermorium | Lv | 116 | ||
Tennessine | Ts | 117 | ||
Oganesson | Og | 118 |
Click here: for a schematic overview of the periodic table of elements in chart form
Do you need to know the weight of some molecules? Try our Molecular Weight Calculator!
Lenntech (European Head Office)
Distributieweg 3
2645 EG Delfgauw
The Netherlands
Phone: +31 152 610 900
fax: +31 152 616 289
e-mail: info@lenntech.com
Ga Atomic Number 31
Lenntech USA LLC (Americas)
5975 Sunset Drive
South Miami, FL 33143
USA
Phone: +1 877 453 8095
e-mail: info@lenntech.com
Lenntech DMCC (Middle East)
Level 5 - OFFICE #8-One JLT Tower
Jumeirah Lake Towers
Dubai - U.A.E.
Phone: +971 4 429 5853
e-mail: info@lenntech.com
Copyright © 1998-2021 Lenntech B.V. All rights reserved
The Element Germanium
[Click for Isotope Data]
Atomic Number: 32
Atomic Weight: 72.630
Melting Point: 1211.40 K (938.25°C or 1720.85°F)
Boiling Point: 3106 K (2833°C or 5131°F)
Density: 5.323 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Semi-metal
Period Number: 4
Group Number: 14
Group Name: none
What's in a name? Named for the country of Germany.
Say what? Germanium is pronounced as jer-MAY-ni-em.
History and Uses:
First proposed to exist by Dmitri Mendeleyev in 1871 based on gaps in his newly created Periodic Table of Elements, germanium was discovered by the German chemist Clemens Winkler in the mineral argyrodite (Ag8GeS6) in 1886. Today, germanium is primarily obtained from the smelting of zinc ores and from the byproducts of burning certain types of coal.
The largest use of germanium is in the semiconductor industry. When doped with small amounts of arsenic, gallium, indium, antimony or phosphorus, germanium is used to make transistors for use in electronic devices. Germanium is also used to create alloys and as a phosphor in fluorescent lamps. Both germanium and germanium oxide (GeO) are transparent to infrared radiation and are used in infrared optical instruments and infrared detectors. Some germanium compounds seem to be effective in killing some types of bacteria and are currently being studied for use in chemotherapy.
Estimated Crustal Abundance: 1.5 milligrams per kilogram
Estimated Oceanic Abundance: 5×10-5 milligrams per liter
Number of Stable Isotopes: 5 (View all isotope data)
Ionization Energy: 7.900 eV
Oxidation States: +4, +2
Ga Atomic Number
Electron Shell Configuration: | 1s2 |
2s2 2p6 | |
3s2 3p6 3d10 | |
4s2 4p2 |
Germanium Element
For questions about this page, please contact Steve Gagnon.