Formation of Ionic Bond Video Lecture - Class 10

we have previously learned about the
formation of ions now we will learn
about ionic bonds ions as you already
know are formed from the loss or gain of
electrons electrons however do not
suddenly appear or disappear they are in
fact transferred from one atom to
another let's look at sodium chloride as
an example sodium loses one electron to
form a sodium ion the electron is not
lost but transferred to chlorine to form
a chloride ion so we have a sodium ion
and a chloride ion
they are oppositely charged ions and
will be electrostatically attracted to
one another much like how opposite poles
of a magnet are attracted to one another
this electrostatic attraction is an
ionic bond sodium chloride is an ionic
compound because it is held intact by
ionic bonds the same thing happens with
magnesium and oxygen why don't you grab
a piece of paper and a pencil and draw
the resulting ionic compound magnesium
oxide please pause the lesson and resume
when you are done magnesium transfers
its two valence electrons to oxygen
forming the magnesium ion and an oxide
ion the resulting ions are
electrostatically attracted to one
another forming an ionic bond did you
get this right did you remember to
include the charges on the ion now let's
look at calcium and chlorine calcium
loses two electrons to form a calcium
ion one of these electrons is
transferred to a chlorine atom and
another is transferred to another
chlorine atom forming two chloride ions
the calcium ion is electrostatically
attracted
to the to chloride ions because the
opposite charges must fully balance each
other out in all three examples the
resulting ionic compounds have an
overall neutral charge because all
charges are fully balanced out in
summary an ionic bond is defined as the
electrostatic attraction between
oppositely charged ions when an ionic
compound is formed the charges must be
balanced so that the resulting ion it
compound has an overall neutral charge