Cadmium

Statistics:

• Name: Cadmium
• Symbol: Cd
• Classification: Transition Metal
• Atomic Number: 48
• Atomic Mass: 112.411 g/mol
• Density: 8.64 g/cm³
• Melting: 321°C
• Boiling: 765°C
• Protons & Electrons:48
• Neutrons:64
• Discovered: 1817
• Discovered By: Strohmeyer and Hermann
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Electrons Per Energy Level:

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

Isotopes:

Isotope: Half-life

• ¹⁰⁶Cd: stable
• ¹⁰⁸Cd: stable
• ¹⁰⁹Cd: 462.6 days
• ¹¹⁰Cd: stable
• ¹¹¹Cd: stable
• ^111m1Cd: 48.54 minutes
• ¹¹²Cd: stable
• ¹¹³Cd: 7.7e+15 years
• ^113m1Cd: 14.1 years
• ¹¹⁴Cd: stable
• ¹¹⁵Cd: 53.46 hours
• ^115m1Cd: 44.6 days
• ¹¹⁶Cd: stable
• ¹¹⁷Cd: 2.49 hours
• ¹¹⁸Cd: 50.3 minutes

Brief Summary

Cadmium is a Transition Metal with the symbol 'Cd' and contains 48 Protons & Electrons with 64 neutrons in the nucleus of the atom. Cadmium has an atomic mass of 112.411 g/mol and, at a temperature of 20°C, has a density of 8.64 g/cm³. It will melt at a temperature of 321°C and boil at 765°C.

Cadmium was discovered by Strohmeyer and Hermann in 1817 and is named 'Cadmium' Greek word "kadmeia," the ancient name for calamine, and from the Latin word "cadmia".

Some common usages for Cadmium: poisonous and nickel-cadmium batteries.

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

Cadmium :: Cd :: 48 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/cadmium.html>.