Preferred Label : Lewis formula (electron dot or Lewis structure);
IUPAC definition : Molecular structure in which the valency electrons are shown as dots so placed between
the bonded atoms that one pair of dots represents two electrons or one covalent (single)
bond, e.g. A double bond is represented by two pairs of dots, etc. Dots representing
non-bonded outer-shell electrons are placed adjacent to the atoms with which they
are associated, but not between the atoms. Formal charges (e.g. , , 2 , etc.) are
attached to atoms to indicate the difference between the positive nuclear charge (atomic
number) and the total number of electrons (including those in the inner shells), on
the formal basis that bonding electrons are shared equally between atoms they join.
(Bonding pairs of electrons are usually denoted by lines, representing covalent bonds,
as in line formulae.);
Origin ID : L03513;
See also
Molecular structure in which the valency electrons are shown as dots so placed between
the bonded atoms that one pair of dots represents two electrons or one covalent (single)
bond, e.g. A double bond is represented by two pairs of dots, etc. Dots representing
non-bonded outer-shell electrons are placed adjacent to the atoms with which they
are associated, but not between the atoms. Formal charges (e.g. , , 2 , etc.) are
attached to atoms to indicate the difference between the positive nuclear charge (atomic
number) and the total number of electrons (including those in the inner shells), on
the formal basis that bonding electrons are shared equally between atoms they join.
(Bonding pairs of electrons are usually denoted by lines, representing covalent bonds,
as in line formulae.)
