K-40 Isotope Applications:

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

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

K-40 isotope is available to order from BuyIsotope.com in K-40 chloride (KCl) chemical form. Please contact us via request a K-40 quote BuyIsotope.com to order K-40 isotope, to get K-40 price and to buy K-40 isotope.

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K-40 Safety Data Sheet (SDS) in chloride form - Download pdf file
Download K-40 SDS in chloride form

Properties of K-40 Isotope:

Properties of K-40 Isotope:K-40
Natural Abundance (%)0.012
Atomic Mass (Da)39.96399817
Relative Isotopic Mass39.96399817
Neutron Number (N)21
Atomic Number (Z)19
Mass Number (A)40
Nucleon Number (A)40
Proton Number (Z)19
Quadrupole Moment -0.061
g-factor (g value)-0.324525
Electron Configuration Blocks
Melting Point (K)336.7
Boiling Point (K)1032
Specific Heat0.753
Heat of Formation89
Thermal Conductivity102.5
Dipole Polarizability 289.7
Electron Affinity (kJ/mole)0.501459
Electronegativity (Pauling scale)0.82
Atomic Radius (pm)227
Covalent Radius (pm)220
VDW Radius (pm)275
Lattice Constant5.23
Crystal StructureBCC
Jmol color#8f40d4

K-40 Information

Potassium is a soft silvery metallic element belonging to group 1 of the periodic table (alkali metals). It occurs naturally in seawater and in many minerals. Highly reactive chemically, this element resembles sodium in its behavior and compounds. Potassium was discovered by Sir Humphry Davy in 1807. Potassium has 26 isotopes. 3 of them are naturally occurring, 2 of which are stable.

Potassium is used as potash in making glass & soap. Also as saltpeter, potassium nitrate (KNO3) is used to make explosives and to color fireworks in mauve. Formerly potassium was called kalium (K). Potassium is vital to function of nerve and muscle tissues.

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FAQ about K-40 Isotope:

What is K-40 isotope natural abundance?
Answer: 0.012 %

What is atomic mass for K-40 isotope?
Answer: 39.963998 Da

What is isotopic mass for K-40 isotope?
Answer: 39.963998

How many neutrons does K-40 isotope have?
Answer: 21

How many protons does K-40 isotope have?
Answer: 19

How many electrons does K-40 isotope have?
Answer: 19

What is atomic number for K-40 isotope?
Answer: 19

Is K-40 isotope stable?
Answer: No

Is K-40 isotope radioactive?
Answer: Yes

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