Atoms of the same element having same atomic number but having different atomic masses are called isotopes. According to Dalton’s atomic theory, all the atoms of an element are alike in all the properties including their masses. Later on, it was discovered that atoms of the same element may be different from each other. These…
“The mass of one atom of an element compared with the mass of one atom of carbon taken as 12 is called relative atomic mass of the element.” Explanation: The mass of one atom of magnesium is two times the mass of one atom of carbon, therefore relative atomic mass of magnesium would be 24….
“When a molecule loss or gain one or more electrons, is called Molecular Ion or Polyatomic ion.” Examples of Polyatomic ions: CH4+, CO+, N2+ etc. Formation of Molecular Ion: Cationic molecular ions are more abundant than anionic Molecular ions. These ions can be generated by passing high energy electron beam or alpha particle…
“A particle carrying either negative or positive charge, is called Ion.” Types of Ions: There are following two types of ions depending upon their nature of charge. Cation Definition: The ion which has positive charge is called Cation. e.g., Na+1, Ba+2, Al+3 etc. A Cation is formed through removal of one or more…
Here in this topic we will discuss definition of molecule in chemistry, molecule examples and properties of molecules. “Smallest particle of elements or compounds which may survive solely is called Molecule.” Composition & Molecule example: It consist of, One atom of the element (monoatomic molecule) E.G., He, Ne, Xe etc. Two atoms of…
The most used definition of atom is as follows, “The smallest particle of an element, which may or may not have an independent existence but can take part in a chemical reaction is called atom.” Explanation of Define Atom: For example, the smallest particle of hydrogen, which does not exist independently is…