40K Isotope Information and Examples of Enriched 40K Applications:

Potassium-40 isotope (K-40 isotope, 40K isotope)

  • 40K isotope is used for studies of biological impact of natural radiation and other environmental studies;

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40K Properties:

Property40K
Number of Protons40
Abundance0.000117
Atomic Number19
Atomic Radius235
Atomic Mass39.96
Spin4
Quadrupole Moment-0.073
Electronegativity (Paulig)0.82
Electron Configuration Blocks
VDW Radius (mm3)309
Mass Uncertainty4e-07
g-factor (g value)-0.3245
Half Life1.248e+09

Potassium Information

Soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). Occurs naturally in seawater and a many minerals. Highly reactive, chemically, it resembles sodium in its behavior and compounds. Discovered by Sir Humphry Davy in 1807.

Used as potash in making glass & soap. Also as saltpeter, potassium nitrate (KNO3) to make explosives and to color fireworks in mauve. Formerly called kalium (K). Vital to function of nerve and muscle tissures.

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