Information valid for Tc-98 unless otherwise noted
[ATOM]

Technetium

 [ATOM]

Basic Information


Symbol: Tc
Atomic Number: 43
Mass: (98)
Melting Point: 2200
Boiling Point: 4877
Number of Protons/Electrons: 43
Number of Neutrons: 55
Classification: Transition Metal
Crystal Structure: Hexagonal
Density: 11.5
Color: Unknown

Atomic Structure

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

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 14
    Fifth Energy Level: 1

Isotopes

Isotope Half Life
Tc-9520 hours
Tc-95m61 days
Tc-964.28 days
Tc-96m51.5 minutes
Tc-972.6e+006 years
Tc-97m90 days
Tc-984.2e+006 years
Tc-992.13e+007 years
Tc-99m6 hours
Tc-10014.2 minutes

Facts


Date of Discovery: 1937
Discoverer: Carlo Perrier
Name Origin: From the Greek word technêtos (artificial)
Uses: Tc-99m is used for radioactive tracing in medicine
Obtained From: Man-made

Related Links

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