CARDINAL NEWMAN CATHOLIC SECONDARY SCHOOL
Grade 9 Science (Academic) – SNC1D9
Mr. Cabilan
Name: _____________________________
1
Date: ______________
IONIC BONDING
COMPOUNDS
Recall… All compounds are composed of molecules made up by __________.
A ___________ is formed when ____ or more electrons gain, lose or share electrons with each
other.
There are 2 types of Compounds:
1. ________ Compounds
2. _________ Compounds
IONIC COMPOUNDS
When atoms _______ or ______ electrons, the atom is no longer _______. It has become an
_____.
An ion is the term we used to describe an _____ with a _______.
For instance:
NEUTRAL ATOM:
# of Protons = # of Electrons
POSITIVE ION:
# of Protons is _______ than # of Electrons (loss of electrons)
(also known as a __________)
NEGATIVE ION:
# of Protons is ______ than # of Electrons (gain of electrons)
(also known as an _________)
EXAMPLE:
Sodium
# of Protons = ____
# of Electrons = ____
# of Valence Electrons
(‘extra’ electrons in outer shell) = ____
To form a stable octet, sodium will ______ an
electron. Therefore, it will create a __________
ion because it has more _________ than __________.
# of Protons after losing electrons = ______
# of Electrons after losing electrons = _____
SODIUM ION = ______
DEDICATION – DESIRE - DISCIPLINE
CARDINAL NEWMAN CATHOLIC SECONDARY SCHOOL
Grade 9 Science (Academic) – SNC1D9
Mr. Cabilan
Name: _____________________________
PRACTICE
2
Date: ______________
Fluorine atom
# of Protons = ____
# of Electrons = ____
# of Valence Electrons
(‘extra’ electrons in outer shell) = ____
To form a stable octet, fluorine will _______ an
electron. Therefore, it will create a ___________
ion because it has more ___________ than __________.
# of Protons after gaining electrons = ______
# of Electrons after gaining electrons = _____
FLUORINE ION = ______
When two ions are formed, they become ____________ to each other and form an
________________________.
CREATING IONIC COMPOUNDS
Construct the compound NaF (Sodium Fluoride)
The attraction between 2 ions is called an ________ bond. This bond is not only _________, but
is also the _______ in all directions. It extends from one ion to the next throughout an ionic
compound.
As a result, ionic compounds _____ together in regular __________ called _________ or a
_____________________________.
EXAMPLE
Na + Cl  NaCl (this gives us ______ crystals!)
DEDICATION – DESIRE - DISCIPLINE
CARDINAL NEWMAN CATHOLIC SECONDARY SCHOOL
Grade 9 Science (Academic) – SNC1D9
Mr. Cabilan
Name: _____________________________
3
Date: ______________
*** AN IONIC COMPOUND IS FORMED WHEN A _______ REACTS WITH A ____________
***
PRACTICE
What happens when Magnesium reacts with Fluorine? Do we still get an ionic
compound in the end?
NAMING IONIC COMPOUNDS
When 2 elements form a molecule, it is called a ___________ COMPOUND. (Binary means TWO).
When naming ________ compounds, the rules are as follows:
1.
The element that is a _______ is named first and it is written as is on the Periodic
Table.
2. The element that is a ____________ is named second and its ending/suffix is changed
to
“-IDE”)
EXAMPLE:
Sodium + chlorine

Magnesium + oxygen

Silver + sulfur

DEDICATION – DESIRE - DISCIPLINE
CARDINAL NEWMAN CATHOLIC SECONDARY SCHOOL
Mr. Cabilan
Grade 9 Science (Academic) – SNC1D9
Name: _____________________________
DEDICATION – DESIRE - DISCIPLINE
4
Date: ______________