Information valid for Pt-195 unless otherwise noted
[ATOM]

Platinum

 [ATOM]

Basic Information


Symbol: Pt
Atomic Number: 78
Mass: 195.078
Melting Point: 1772
Boiling Point: 3827
Number of Protons/Electrons: 78
Number of Neutrons: 117
Classification: Transition Metal
Crystal Structure: Cubic
Density: 21.45
Color: silverish

Atomic Structure

[Bohr Model of Platinum]  
Number of Energy Levels: 6

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 17
    Sixth Energy Level: 1

Isotopes

Isotope Half Life
Pt-18810.2 days
Pt-1906e+011 years
Pt-1912.96 days
Pt-192Stable
Pt-19360 years
Pt-193m4.33 days
Pt-194Stable
Pt-195Stable
Pt-195m4.02 days
Pt-196Stable
Pt-19718.3 hours
Pt-197m1.59 hours
Pt-198Stable

Facts


Date of Discovery: 1735
Discoverer: Julius Scaliger
Name Origin: From the Spanish word platina (little silver)
Uses: jewelry, containers, catalyst
Obtained From: platinum ores

Related Links

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