Difference between revisions of "TFNR - Molecules"

From Evolutionary Knowledge Base
Jump to: navigation, search
Line 1: Line 1:
 
Da riscrivere
 
Da riscrivere
  
−
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.[4][5][6][7][8] In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and molecule is often used when referring to polyatomic ions.
+
A molecule is an aggregate of two or more atoms (including polyatomic ions) held together by chemical bonds.
  
−
A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e.g. two atoms in the oxygen molecule (O2); or it may be heteronuclear, a chemical compound composed of more than one element, e.g. water (two hydrogen atoms and one oxygen atom; H2O). In the kinetic theory of gases, the term molecule is often used for any gaseous particle regardless of its composition. This relaxes the requirement that a molecule contains two or more atoms, since the noble gases are individual atoms.[9] Atoms and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically not considered single molecules.[10]
+
Molecules may be formed by atoms of same chemical element, or of different chemical elements. Molecules are the building blocks of compounds.
 +
 
 +
Atoms can be connected by different kind of and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically not considered single molecules.
  
  
  
 
{{Template:PaperPages1}}
 
{{Template:PaperPages1}}

Revision as of 18:32, 2 September 2023

Da riscrivere

A molecule is an aggregate of two or more atoms (including polyatomic ions) held together by chemical bonds.

Molecules may be formed by atoms of same chemical element, or of different chemical elements. Molecules are the building blocks of compounds.

Atoms can be connected by different kind of and complexes connected by non-covalent interactions, such as hydrogen bonds or ionic bonds, are typically not considered single molecules.


Links to the tables of contents of TFNR Paper


Retrieved from "http://www.evknowledge.org/ekb/index.php?title=TFNR_-_Molecules&oldid=11414"