Molybdenum

Statistics:

• Name: Molybdenum
• Symbol: Mo
• Classification: Transition Metal
• Atomic Number: 42
• Atomic Mass: 95.94 g/mol
• Density: 10.28 g/cm³
• Melting: 2617°C
• Boiling: 5560°C
• Protons & Electrons:42
• Neutrons:54
• Discovered: 1778
• Discovered By: Scheele
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 13
• Level 5: 1

Isotopes:

Isotope: Half-life

• ⁹¹Mo: 65.0 seconds
• ⁹²Mo: stable
• ⁹³Mo: 4.0e+3 years
• ⁹⁴Mo: stable
• ⁹⁵Mo: stable
• ⁹⁶Mo: stable
• ⁹⁷Mo: stable
• ⁹⁸Mo: stable
• ⁹⁹Mo: 65.94 hours
• ¹⁰⁰Mo: 1.00e+19 years
• ¹⁰¹Mo: 14.61 minutes

Brief Summary

Molybdenum is a Transition Metal with the symbol 'Mo' and contains 42 Protons & Electrons with 54 neutrons in the nucleus of the atom. Molybdenum has an atomic mass of 95.94 g/mol and, at a temperature of 20°C, has a density of 10.28 g/cm³. It will melt at a temperature of 2617°C and boil at 5560°C.

Molybdenum was discovered by Scheele in 1778 and is named 'Molybdenum' Greek word "molubdos" meaning "lead".

Some common usages for Molybdenum: aircraft and missile technology.

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

Molybdenum :: Mo :: 42 - Chemical Element. 10 Mar. 2010 <http://www.chemicalelement.com/element/molybdenum.html>.