BBC - GCSE Bitesize: How ions form



British Broadcasting CorporationBBCHome

*Accessibility links*

· Skip to content
· Skip to local navigation
· Skip to navigation
· Skip to search
· Accessibility Help

Orange and blue banner with text GCSE Bitesize on left and the Bitesize
fish on rightBBC Radio 1 listen BBC 1Xtra listen

· Bitesize Home
· Subjects

· Art & Design
· Business Studies
· Design & Technology
· DiDA
· Drama
· English
· English Literature
· French
· Geography
· German
· History
· Irish
· Maths
· Music
· Physical Education
· Religious Studies
· Science
· Spanish
· Welsh 2nd Language

· Audio
· Games
· Message Boards

· Facebook logoFind us on Facebook

· KS3 Bitesize
· More Bitesize
· BBC Teachers

· Home
· > Science
· > AQA Additional Science (Pre-2011)
· > Atomic structure and bonding
· > Ionic bonding



Ionic bonding


1. 1
2. 2
3. 3
4. 4
5. 5

1. Next

Ions are electrically charged particles formed when atoms [*atoms*: /An
atom is the smallest part of an element that still has the properties of
that element, comprising electrons surrounding a nucleus of protons and
neutrons./ ] lose or gain electrons [*electrons*: /Sub-atomic particles,
with a negative charge and a negligible mass relative to protons and
neutrons./ ]. They have the same electronic structures as noble gases.

Metal atoms form positive ions, while non-metal atoms form negative ions.
The strong electrostatic [*electrostatic*: /An electrostatic force is
generated by differences in electric charge (ie positive and negative)
between two particles. It can also refer to electricity at rest. / ] forces
of attraction between oppositely charged ions are called ionic bonds.

Ionic compounds*ionic


how are ions formed

Ionic bond - Wikipedia, the free encyclopedia


** Ionic bond **

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Page semi-protected

Question book-new.svg
This article *relies largely or entirely upon a single source*. Relevant
discussion may be found on the talk page. Please help improve this article
by introducing citations to additional sources. /(November 2009)/

Sodium and fluorine bonding ionically to form sodium fluoride. Sodium loses
its outer electron to give it a stable electron configuration, and this
electron enters the fluorine atom exothermically. The oppositely charged
ions are then attracted to each other.

An *ionic bond* is a type of chemical bond formed through an electrostatic
attraction between two oppositely charged ions. Ionic bonds are formed due
to the attraction between an atom that has lost one or more electron (known
as a cation) and an atom that has gained one or more electrons (known as an
anion). Usually, the cation is a metal atom and the anion is a nonmetal

It is important to recognize that /pure/ ionic bonding - in which one atom
"steals" an electron from another - cannot exist: all ionic compounds have
some degree of covalent bonding, or electron sharing. Thus, the term "ionic
bond" is given to a bond in which the ionic character is greater than the
covalent character - that is, a bond in which a large electronegativity
difference exists between the two atoms, causing the bond to be more polar
(ionic) than other forms of covalent bonding where electrons are shared
more equally. Bonds with partially ionic and partially covalent character
are called polar covalent bonds. Nevertheless, ionic bonding is considered
to be a form of noncovalent bonding.

Ionic compounds conduct electricity when molten or in solution, but not as
a solid. They generally have a


© 2005-2021