Atomic Mass Of Potassium

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Potassium
  1. Potassium Mass Number
  2. Atomic Mass Of Potassium
  3. Atomic Mass Of Potassium Ion

We elaborate the uses of Potassium and atomic properties with characteristics. Potassium is a silver-white chemical element with an atomic number of 19. Its symbol is K and it belongs to the group of alkali metals and its usual state in nature is solid. Potassium is located at position 19 on the periodic table.

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Chemical elements listed by atomic mass The elements of the periodic table sorted by atomic mass. Click on any element's name for further information on chemical properties, environmental data or health effects. This list contains the 118 elements of chemistry. Atomic Mass: Molar Mass: The atomic mass is the sum of the mass of protons, neutrons, and electrons. It is the mass of a mole of a substance. It is denoted by m a. The symbol used for it is M. It has a unit of the unified mass unit (u) or the atomic mass unit (amu). G mol −1 is the standard unit for the molar mass. The atomic mass is an.

On this page you can discover the chemical properties of potassium and information about potassium and other elements on the periodic table such as sodium, rubidium, calcium or hydrogen. You will also learn what potassium is for and you will know its uses through its properties associated with potassium, such as its atomic number or the usual state in which potassium can be found.

You will be able to see qualities of potassium such as its melting and boiling point, its magnetic properties or what its chemical symbol is. In addition, here you will find information about its atomic properties such as the distribution of electrons in potassium atoms and other properties.

For some elements, some of this information is unknown. In these cases we show the properties attributed to them.

Potassium Mass Number

Properties of potassium

Potassium belongs to the group of alkali metals. This group of elements is characterized by having a single electron at its outermost energy level and they tend to lose it, thus forming a monopositive ion. This tendency of alkali metals such as potassium is due to their low ionization energy and their low electronic affinity.

The state of potassium in its natural form is solid. Potassium is a silver-white chemical element and belongs to the group of alkali metals. The atomic number of potassium is 19. The chemical symbol for potassium is K. The melting point of potassium is 336.53 degrees Kelvin or 64.38 degrees Celsius or degrees Celsius. The boiling point of potassium is 1032 degrees Kelvin or 759.85 degrees Celsius or degrees Celsius.

Potassium is a mineral that our body needs for its proper functioning and can be found in food. Through the following link, you can find a list of foods with potassium .

Uses of potassium

Potassium ions are vital for plant and animal life. Fruits contain a high amount of potassium ions. If you have ever wondered what potassium is for , here is a list of its possible uses:

  • Almost all the potassium in the world is used in fertilizers. Since potassium ions are a vital part of plant nutrition, crops and trees must be grown in soils with high concentrations of potassium ions. Potassium chloride, potassium sulfate, and potassium nitrate are used in agriculture, horticulture, and hydroponic crops.
  • Potassium chloride is used to stop the heart. This is used for heart surgery (when the heart stops and reactivates again) and for lethal injections.
  • Rochelle salt, which contains potassium, is the main component of baking powder.
  • Potassium bromate is added to flour to make it stronger and increase its density.
  • Another potassium compound, potassium bisulfate, is used to preserve food (except meat), wine, and beer . It can also be used to clean and discolor fabrics and dye leather.
  • Submarines and spacecraft often contain potassium superoxide (KO2). This supplies oxygen to the crew of the submarine or a spacecraft.
  • Potassium hydroxide is a strong base. It is used in industries and science laboratories to neutralize acids and make potassium salts. It is also added to fats and oils to make soap.
  • Potassium chlorate is used to kill weeds. It is also used in safety matches.
  • Tempered glass (stronger than ordinary glass) is made using potassium nitrate.
  • Two potassium compounds are used as inks and dyes.
  • Potassium cyanide is used in gold mining .

Atomic Mass Of Potassium

Atomic properties of potassium

The atomic mass of an element is determined by the total mass of neutrons and protons that can be found in a single atom belonging to this element. As for the position where to find potassium within the periodic table of the elements, potassium is in group 1 and period 4. Potassium has an atomic mass of 39.0983 u.

The electronic configuration for potassium is [Ar] 4s1. The electronic configuration of the elements, determines the form in which the electrons are structured in the atoms of an element. The average radius for potassium is 220 pm, its atomic radius or Bohr radius is 243 pm, its covalent radius is 196 pm, and its Van der Waals radius is 275 pm. Potassium has a total of 19 electrons whose distribution is as follows: In the first layer it has 2 electrons, in the second it has 8 electrons, in its third layer it has 8 electrons and in the fourth one, 1 electron.

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Potassium characteristics

Atomic Mass Of Potassium Ion

Below you can see a table showing the main characteristics of potassium.

Potassium
Chemical symbolK
Atomic number19
Groupone
Period4
Appearancesilver white
Blocks
Density856 kg / m3
Atomic mass39.0983 u
Average radius220 pm
Atomic radio243
Covalent radius196 pm
Van der Waals radio275 pm
Electronic configuration[Ar] 4s1
Electrons per layer2, 8, 8, 1
Oxidation states1 (strong base)
Crystal structurebody centered cubic
Statesolid
Melting point336.53 K
Boiling point1032 K
Heat of fusion2,334 kJ / mol
Vapor pressure1.06 × 10-4Pa at 336.5 K
Electronegativity0.82
Specific heat757 J / (K · kg)
Thermal conductivity102.4 W / (Km)

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Molar Mass, Molecular Weight and Elemental Composition Calculator


Molar mass of KAl(SO4)2*12H2O is 474.3884 g/mol
Convert between KAl(SO4)2*12H2O weight and moles
CompoundMolesWeight, g
KAl(SO4)2*12H2O

Elemental composition of KAl(SO4)2*12H2O
ElementSymbolAtomic weightAtomsMass percent
PotassiumK39.098318.2418
AluminumAl26.981538615.6876
HydrogenH1.00794245.0993
OxygenO15.99942067.4527
SulfurS32.065213.5185

Mass percent compositionAtomic percent composition

Formula in Hill system is AlH24KO20S2

Computing molar mass (molar weight)

To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use:
  • Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.
  • Functional groups: D, Ph, Me, Et, Bu, AcAc, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
  • parantesis () or brackets [].
  • Common compound names.
Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose.
Molar mass calculator also displays common compound name, Hill formula, elemental composition, mass percent composition, atomic percent compositions and allows to convert from weight to number of moles and vice versa.

Computing molecular weight (molecular mass)

To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2.

Definitions of molecular mass, molecular weight, molar mass and molar weight

  • Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Weights of atoms and isotopes are from NIST article.
Give us feedback about your experience with Molecular Weight Calculator.
Related: Molecular weights of amino acids
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