It is denoted by the symbol ‘K’. 0.2148699. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. What is Potassium on the Periodic Table? 41 K. 40.9618254 (12) 6.7302 (44) 3 / 2. Atomic Mass of Potassium Atomic mass of Potassium is 39.0983 u. Potassium. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. Element Potassium (K), Group 1, Atomic Number 19, s-block, Mass 39.098. The atomic mass of potassium is 39.098 atomic mass units. Atomic weight (average mass of the atom): 39.0983 The atomic mass is the mass of an atom. In 1975, the Commission recommended Ar (K) = 39.0983 (3), based on new mass-spectrometric measurements and results of a mineralogical study of possible isotopic variations. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Isotope abundances of potassium. In the above, the most intense ion is set to 100% since this … Atomic number (number of protons in the nucleus): 19; Atomic symbol (on the Periodic Table of Elements): K (from the Latin word for alkali, kalium.) The result of low Potassium Periodic Table levels is evident in numerous symptoms like restricted growth, reduced flowering, lower yields, and lower quality products. 0.8; Density; 0.86 g.cm -3 at 0 °C; Melting point; 63.2 °C Natural potassium is composed of three isotopes, including potassium-40 (0.0118%), a radioactive isotope with a half life of 1.28 x 10 9 years. Minerals are dated by measurement of the concentration of potassium and the amount of radiogenic 40 Ar that has accumulated. Atomic number; 19; Atomic mass; 39.0983 g.mol -1; Electronegativity According To Pauling. Potassium is the first element of the fourth period (row) in the periodic table. Potassium-39 is normally about 13.5 times more plentiful than potassium-41. The disintegration of potassium-40 is used in geological age calculations (see potassium-argon dating). 4. Please visit the Potassium element page for information specific to the chemical element of the periodic table. Isotope data for potassium-37 in the Periodic Table Isotopes of Potassium (click to see decay chain): 32 K 33 K 34 K 35 K 36 K 37 K 38 K 39 K 40 K 41 K 42 K 43 K 44 K … The decay of 40 K to 40 Ar is used in potassium-argon dating of rocks. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters for atomic nuclei of the isotope K-63 (Potassium, atomic number Z = 19, mass number A = 63). If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. More... Potassium-39 atom is the stable isotope of potassium with relative atomic mass 38.963707, 93.3 atom percent natural abundance and nuclear spin 3/2. Potassium Properties: Potassium's melting point is 63.25°C, boiling point is 760°C, specific gravity is 0.862 (20°C), with a valence of 1. -1.298099. In a human body of 70 kg mass, about 4,400 nuclei of 40 K decay per second. The natural radioactivity of potassium is due to beta radiation from the potassium-40 isotope (10 9 years half-life).