Ruthenium

Statistics:

• Name: Ruthenium
• Symbol: Ru
• Classification: Transition Metal
• Atomic Number: 44
• Atomic Mass: 101.07 g/mol
• Density: 12.45 g/cm³
• Melting: 2310°C
• Boiling: 3900°C
• Protons & Electrons:44
• Neutrons:57
• Discovered: 1844
• Discovered By: Klaus
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 15
• Level 5: 1

Isotopes:

Isotope: Half-life

• ⁹⁶Ru: stable
• ⁹⁷Ru: 2.9 days
• ⁹⁸Ru: stable
• ⁹⁹Ru: stable
• ¹⁰⁰Ru: stable
• ¹⁰¹Ru: stable
• ¹⁰²Ru: stable
• ¹⁰³Ru: 39.26 days
• ¹⁰⁴Ru: stable
• ¹⁰⁵Ru: 4.44 hours
• ¹⁰⁶Ru: 373.59 days

Brief Summary

Ruthenium is a Transition Metal with the symbol 'Ru' and contains 44 Protons & Electrons with 57 neutrons in the nucleus of the atom. Ruthenium has an atomic mass of 101.07 g/mol and, at a temperature of 20°C, has a density of 12.45 g/cm³. It will melt at a temperature of 2310°C and boil at 3900°C.

Ruthenium was discovered by Klaus in 1844 and is named 'Ruthenium' Latin word "Ruthenia" meaning "Russia".

Some common usages for Ruthenium: platinum alloys.

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

Ruthenium :: Ru :: 44 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/ruthenium.html>.