The chemical symbol of potassium is _______.

Explanation

The correct answer is K. Key Points The chemical symbol of potassium is K. Potassium is a chemical element with the symbol K and atomic number 19. Classified as an alkali metal, potassium is a solid at room temperature. The term potassium arises from a material called Potash. The element has been in use for hundreds of years. It is an alkali metal along with lithium, rubidium, sodium, caesium, and francium. It is a very active metal and never occurs free in nature and it always forms a compound with other elements. Potassium usually has three isotopes, it goes by the name of potassium-39, 40 and 41. The potassium-40 is highly radioactive and can be found in rocks, plants, and animals . It is used to measure the age of objects. Additional Information Elements Properties Calcium with atomic number 20 is represented in the periodic table with the symbol Ca. Calcium (Ca) is a vital element that aids our bones stay tough Ca and is capable of supporting our load. Calcium is also used by our nervous system to help transmit impulses through our bodies. The element is the fifth most abundant metal in the planet’s crust (4.1%). Phosphorus is a chemical element with an atomic number of 15, which means that the atomic structure includes 15 protons and 15 P electrons. For Phosphorus, the chemical symbol is P. The atomic mass of phosphorus is 30.973762 u. Lithium symbol Li. Lithium atomic number 3. Lithium atomic mass 6.941. Li Lithium is a chemical element that occurs first in the alkalis of the periodic table. It is the lightest solid metal.