Information valid for Cd-112 unless otherwise noted
[ATOM]

Cadmium

 [ATOM]

Basic Information


Symbol: Cd
Atomic Number: 48
Mass: 112.411
Melting Point: 320.9
Boiling Point: 765
Number of Protons/Electrons: 48
Number of Neutrons: 64
Classification: Transition Metal
Crystal Structure: Hexagonal
Density: 8.65
Color: Silvery

Atomic Structure

[Bohr Model of Cadmium]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 18
    Fifth Energy Level: 2

Isotopes

Isotope Half Life
Cd-106Stable
Cd-108Stable
Cd-109462 days
Cd-110Stable
Cd-111Stable
Cd-111m48.5 minutes
Cd-112Stable
Cd-1139e+015 years
Cd-113m14.1 years
Cd-114Stable
Cd-1152.2 days
Cd-115m44.6 days
Cd-116Stable
Cd-1172.5 hours
Cd-1183.4 hours

Facts


Date of Discovery: 1817
Discoverer: Fredrich Stromeyer
Name Origin: From the Greek word kadmeia (ancient name for calamine) and from the Latin word cadmia
Uses: poisonous, nickel-cadmium batteries
Obtained From: by-product of zinc refining

Related Links

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