Molecule: Difference between revisions

Latest revision as of 21:06, 23 February 2025

Molecule

A molecule is the smallest identifiable unit of a chemical compound that has the properties of that compound and can exist in a free state. Molecules are composed of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

Structure and properties[edit]

The structure of a molecule is determined by the number and types of atoms in it, and by the bonds that hold these atoms together. The properties of a molecule, such as its reactivity, boiling point, and acidity, are largely determined by its structure.

Molecular structure[edit]

The structure of a molecule can be described in terms of its geometry, the arrangement of its atoms in space, and its connectivity, the way its atoms are bonded together.

Molecular properties[edit]

The properties of a molecule are determined by its structure and by the nature of the atoms and bonds in it. These properties include its reactivity, its physical properties, such as its phase (solid, liquid, or gas) and boiling point, and its chemical properties, such as its acidity or basicity.

Types of molecules[edit]

There are many types of molecules, ranging from simple diatomic molecules, such as oxygen (O2) and hydrogen (H2), to complex organic molecules, such as proteins and DNA.

References[edit]

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Molecule[edit]

PTCDA AFM

PTCDA AFM
Pentacene on Ni(111) STM

Pentacene on Ni(111) STM
TOAT AFM

TOAT AFM
Fire symbol (alchemical)

Fire symbol (alchemical)
Earth symbol (alchemical)

Earth symbol (alchemical)
Air symbol (alchemical)

Air symbol (alchemical)
Water symbol (alchemical)

Water symbol (alchemical)
Gaudins volume diagrams

Gaudins volume diagrams
CH4 hybridization

CH4 hybridization
Covalent bond hydrogen

Covalent bond hydrogen
NaF

NaF
Atisane3

Atisane3

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 {{stub}}
 {{dictionary-stub1}}
+== Molecule ==
+<gallery>
+File:PTCDA_AFM.jpg|PTCDA AFM
+File:Pentacene_on_Ni(111)_STM.jpg|Pentacene on Ni(111) STM
+File:TOAT_AFM.png|TOAT AFM
+File:Fire_symbol_(alchemical).svg|Fire symbol (alchemical)
+File:Earth_symbol_(alchemical).svg|Earth symbol (alchemical)
+File:Air_symbol_(alchemical).svg|Air symbol (alchemical)
+File:Water_symbol_(alchemical).svg|Water symbol (alchemical)
+File:Gaudins-volume-diagrams.jpg|Gaudins volume diagrams
+File:Ch4_hybridization.svg|CH4 hybridization
+File:Covalent_bond_hydrogen.svg|Covalent bond hydrogen
+File:NaF.gif|NaF
+File:Atisane3.png|Atisane3
+</gallery>