molecule in the Chemistry topic by Longman Dictionary of Contemporary English | LDOCE | What you need to know about Chemistry: words, phrases and expressions | Chemistry
(Chem.) A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; (physics and chemistry) the simplest structural unit of an element or compoundGoogle...
1.the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2.a quantity of a substance, the weight of which is numerically equal to the molecular weight; gram molecule. ...
Mole, standard unit (6.02214076 x 10^23) in chemistry for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s const
protein molecule - any large molecule containing chains of amino acids linked by peptide bonds building block, unit - a single undivided natural thing occurring in the composition of something else; "units of nucleic acids" atom - (physics and chemistry) the smallest component of an element havin...
Molecule definition: the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.. See examples of MOLECULE used in a sentence.
The terms molecule, compound, and atom can be confusing! Here's an explanation of what a molecule is with some examples of common molecules.
Atoms of same element or different elements can join together to form molecules The molecules of an element are constituted by the same type of atoms Molecules of many elements are having only one atom. Eg. Helium, argon, neon In most non metals, the molecule contains more than one element...
In homonuclear diatomic molecules, the bonding is covalent. Each atom in the molecule has equalelectronegativity; electrons are shared equally between the two atoms. In heteronuclear diatomic molecules, the atoms differ in electronegativity; these molecules have polar covalent bonds. The molecule forms ...
The term "formula unit" is most relevant in the field of inorganic chemistry, specifically when studying ionic compounds and crystal lattices. Related Terms Molecule Ionic Compound Covalent Compound Empirical Formula Molecular Formula Examples/Applications ...