40K Isotope

40k isotope 40k enriched 40k abundance 40k atomic mass 40k

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

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

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

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

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

Properties of 40K Isotope:

Properties of 40K Isotope:40K
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
Half-life1.250E+09
Spin4
Quadrupole Moment -0.061
g-factor (g value)-0.324525
Group1
Period4
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

40K 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 40K Isotope:

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

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

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

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

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

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

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

Is 40K isotope stable?
Answer: No

Is 40K isotope radioactive?
Answer: Yes

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