Ionic bonds form between oppositely charged ions. They result from the transfer of electrons from one atom to another. Ionic bonding typically occurs between metals and nonmetals. Metals tend to lose electrons to fill their outer shell, becoming positively charged ions, while nonmetals gain electrons to fill their outer shell, becoming negatively charged ions. The electrostatic attraction between the opposite charges of the ions forms the ionic bond.
2. Ionic bonds are a type of chemical bond based on
electrostatic forces between two oppositely-charged
ions.
It is basically the transfer of one electron from one
atom to another.
3. To understand ionic bonding, you should first
have a solid understanding of ions.
An ion is an atom or group of atoms that have a
charge. Atoms normally have a neutral charge because
most often they have the same number of electrons
and protons. They become ions by the loss or addition
of one or more electrons. This process is called
ionization.
4. Ionic boding most often occurs between a metal and
a nonmetal.
If think about it, nonmetals usually have four or more
electrons in their outer shell. To make their outer shell
full, its easier, meaning it takes less ionization energy,
for them to gain three or four electrons than to lose four
or five electrons.
5. On the other hand, if you look at the metals, they
usually have three or less electrons in their outer shell.
Opposite from nonmetals, it is easier for metals to lose
three or less electrons than to gain four or more.
This is why it makes sense that metals and
nonmetals bond easily.