Gadolinium

Statistics:

• Name: Gadolinium
• Symbol: Gd
• Classification: Lanthanide
• Atomic Number: 64
• Atomic Mass: 157.25 g/mol
• Density: 7.89 g/cm³
• Melting: 1311°C
• Boiling: 3233°C
• Protons & Electrons:64
• Neutrons:93
• Discovered: 1880
• Discovered By: de Marignac
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 25
• Level 5: 9
• Level 6: 2

Isotopes:

Isotope: Half-life

• ¹⁴⁸Gd: 74.6 years
• ¹⁵⁰Gd: 1.79e+6 years
• ¹⁵¹Gd: 124 d
• ¹⁵²Gd: 1.08e14 years
• ¹⁵³Gd: 240.4 days
• ¹⁵⁴Gd: stable
• ¹⁵⁵Gd: stable
• ¹⁵⁶Gd: stable
• ¹⁵⁷Gd: stable
• ¹⁵⁸Gd: stable
• ¹⁵⁹Gd: 18.479 hours
• ¹⁶⁰Gd: stable
• ¹⁶²Gd: 8.4 minutes

Brief Summary

Gadolinium is a Lanthanide with the symbol 'Gd' and contains 64 Protons & Electrons with 93 neutrons in the nucleus of the atom. Gadolinium has an atomic mass of 157.25 g/mol and, at a temperature of 20°C, has a density of 7.89 g/cm³. It will melt at a temperature of 1311°C and boil at 3233°C.

Gadolinium was discovered by de Marignac in 1880 and is named 'Gadolinium' mineral: gadolinite.

Some common usages for Gadolinium: magnetic.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Gadolinium :: Gd :: 64 - Chemical Element. 10 Mar. 2010 <http://www.chemicalelement.com/element/gadolinium.html>.