The document describes a strategic intervention material (SIM) on ions and charges of representative elements for grade 9 chemistry students. The SIM includes guide cards, activity cards, an assessment card, answer cards, and enrichment information. Activity cards have students identify ion charges, determine if atoms lose or gain electrons to form ions, and draw ion formations. Assessment results showed students' understanding improved from an average 70% before the SIM to 95% after completing the SIM activities. The teacher concluded the SIM was an effective tool that improved critical thinking and made learning fun by providing guided practice, activities, and exercises on ion concepts.

1. STA. ROSA NATIONAL HIGH SCHOOL
STA. ROSA, LAPU-LAPU CITY
S.Y. 2015-2016
IONS AND CHARGES OF THE
REPRESENTATIVE ELEMENTS
A
STRATEGIC INTERVENTION MATERIAL IN
GRADE 9 CHEMISTRY
Presented by:
CELESTINA TANEO SAGARINO
TEACHER III

2. TABLE OF CONTENTS
I. GUIDE CARD 1
II. ACTIVITY CARDS
A. Activity card 1 2
B. Activity card 2 4
C. Activity card 3 5
III. ASSESSMENT CARD 6
IV. ANSWER CARD 7
V. ENRICHMENT CARD 8
VI. REFERENCE CARD 9

3. GUIDE CARD
What are ions? How are they formed? When an atom gains or loses electrons,
they develop a CHARGE. These charged particles are called IONS. When an atom
loses electrons, they become positively charged. Positively charged ions are called
CATIONS. When an atom gains electrons, they become negatively charged.
Negatively charged ions are called ANIONS.
CAN YOU MAKE A BLAST OUT OF THESE PHOTOS?????
In this STRATEGIC INTERVENTION MATERIAL ( SIM ) the
students is exposed to an understanding of the concepts on the IONS
AND CHARGES OF THE REPRESENTATIVE ELEMENTS. After
accomplishing this SIM learner should be able to:
 Identify the charged of a cation and anion with the location of these
ions in the periodic table.
 Determine the properties of a metal and non metal either by losing or
gaining electrons.
 Draw and create how ions are formed.
 Apply the concepts of ions in the field of pharmaceutical, environmental
and forensic ( crime-solving) fields or etc.
Welcome!!!!!
What ions are
you?????

4. ACTIVITY CARD 1. LOCATE ME :
Referto the table below,Give at leasttwo examplesthat should be placed in eachcolumn. 1 point
each for the NAME sample of the IONcorrespondingits charged. You can use the periodictable as
your guide.
Are you charged?
Table of charges basedon groups on the periodictable without transition metals,
“d” block, and without noble gases,group VIIIA,to illustrate symmetryof the charges:
IA IIA IIIA IVA VA VIA VIIA
+1 +2 +3 ±4 -3 -2 -1
The charge on an ion will involve a number and a sign.The number will always be the
numberof electronsinvolved,e.g.,lossof two electronsis +2. The signwill be positive if
electrons, are lostand negative ifelectronsare gained.
1.1 . Determine the charges on the following using the table above as a guide:
THE FIRST ONEIS DONEFOR YOU….
1. An atom havinglost two electrons_____Answer +2
2. An atom havinggained one electron ________
3. An atom havinggained three electrons ______
4. An atom havinggained two electrons _______
5. An atom havinglost one electron ________
Get ready Locate me
plz…

5. ADORNED ME???????

6. ACTIVITY CARD 2. LOSE ME OR ACCEPT ME????
Whenan atom loseselectrons,theybecome positivelycharged,and usuallythey are metals.When
an atom gains electrons, they become negatively charged and usually they are non metals.
Recall that electrons are negatively charged, so the gaining or losing of electrons will create a
charge.
INSTRUCTIONS..PUT A CHECKMARK (√ )IN THE BOX FOR LOSING AND MARK (X) FOR GAINING
ELECTRONS.
METALS/NON-METAL IONS LOSING ELECTRONS GAINING ELECTRONS
𝑳𝒊+𝟏
𝑴𝒈+𝟐
𝑪𝒂+𝟐
𝑶−𝟐
𝑵−𝟑
ACTIVITY CARD 3…… DRAW AND CREATE ME
HOW ARE YOU FEELING NOW????? ARE YOU READY TO FORM IONS ON YOUR OWN????LETS
TRY….. DRAW THEN CREATE ME. BUT WAIT,, THE FIRST ONE IS DONE FOR YOU.
Take time to
draw andcreate
me???

7. CAN YOU DO IT NOW????? INSTRUCTIONS…..DRAW AND
CREATE FOR SODIUM ION. (10 POINTS)
Na+

8. III. ASSESSMENT CARD
INSTRUCTION..CHOOSE THE LETTER OF YOUR CHOICE…
1. What is the name of a positive ion?
a. negative b.anions c. cations d.neutral
2. What is the name of a negative ion?
a. negative b.anions c. cations d.neutral
3. What is the only charge common to GROUP IA elements?
a. +1 b.+2 c.-1 d.-2
4. What is the only charge common to GROUP VIIA elements?
a. +1 b.+2 c.-1 d.-2
5. What is the charge of an atom that has lost 3 electrons?
a. positive b.+3 c. negative d.-3
Superb!!!!!!!Well done!!!!!
Checkyour own
understanding!!!

9. IV. ANSWER CARD
ACTIVITY CARD I…….. LOCATEME …
ACTIVITY CARD 2……LOSE ME OR ACCEPT ME
METALS/NON-METAL IONS LOSING ELECTRONS GAINING ELECTRONS
𝑳𝒊+𝟏
√
𝑴𝒈+𝟐
√
𝑪𝒂+𝟐
√
𝑶−𝟐
×
𝑵−𝟑
×
1.1: 1. +2 2. -1 3. -3 4. -2 5. +1
ACTIVITY CARD 3….. DRAW AND CREATE ME
ASSESSMENT CARD:
1. C 2.B 3.A 4.C 5.B

10. V. ENRICHMENT CARD
Atoms have no electric charge; if they acquire one, they are called ions. Ions are involved in a
form of chemical bonding that produces extremely strong bonds between metals, or between a
metal and a nonmetal. These substances, of which table salt is an example, are called ionic
compounds. Ionization is the process whereby electrons are removed from an atom or molecule,
as well as the process whereby an ionic substance, such as salt, is dissociated into its
component ions in a solution such as water. There are several varieties of ionization, including
field ionization, which almost everyone has experienced in the form of static electricity. Ion
exchange, or the replacement of one ion by another, is used in applications such as water
purification, while chemists and physicists use ions in mass spectrometry, to discover mass and
structural information concerning atoms and molecules. Another example of ions at work (and a
particularly frightening example at that) is ionizing radiation, associated with the radioactive
decay following a nuclear explosion.
Read more: http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Ions-and-
Ionization.tml#ixzz3oEL80MZa
MASS SPECTROMETRY.
As not-ed, a number of the ionization methods described above are used in mass spectrometry, a
means of obtaining structure and mass information concerning atoms or molecules. In mass
spectrometry,ionizedparticles are accelerated in a curved path through an electromagnetic field. The
field will tend to deflect lighter particles from the curve more easily than heavier ones. By the time
the particles reach the detector, which measures the ratio between mass and charge, the ions will
have been separated into groups according to their respective mass-to-charge ratios.
When molecules are subjected to mass spectrometry, fragmentation occurs. Each molecule breaks
apart in a characteristic fashion, and this makes it possible for a skilled observer to interpret the mass
spectrum of the particles generated. Mass spectrometry is used to establish values for ionization
energy, as well as to ascertain the mass of substances when that mass is not known. It can also be
used to determine the chemical makeup of a substance. Mass spectrometry is applied by chemists,
not only in pure research, but in applications within the environmental, pharmaceutical, and forensic
(crime-solving) fields. Chemists for petroleum companies use it to analyze hydrocarbons, as do
scientists working in areas that require flavor and fragrance analysis.
Read more: http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Ions-and-Ionization-Real-life-
applications.html#ixzz3oELgMQtx

11. VI.REFERENCE CARD
http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Ions-and-Ionization-Real-life-
applications.html
"The Atom."Thinkquest (Website). <http://library.thinkquest.org/17940/texts/atom/atom.html> (May
18, 2001).
"Explore the Atom" CERN—European Organization for Nuclear Research (Web
site). <http://public.web.cern.ch/Public/SCIENCE/Welcome.html> (May 18, 2001).
Gallant, Roy A. The Ever-Changing Atom. New York: Benchmark Books, 1999.
"Ion Exchange Chromatography" (Web site). <http://ntri.tamuk.edu/fplc/ion.html> (June 1, 2001).
"Just After Big Bang, Colliding Gold Ions Exploded." UniSci: Daily University Science News (Web
site). <http://unisci.com/stories/20012/0501012.htm> (June 1, 2001).
"A Look Inside the Atom" (Web site). <http://www.aip.org/history/electron/jjhome.htm> (May 18,
2001).
"Portraitof the Atom" (Website). <http://www.inetarena.com/~pdx4d/snelson/Portrait.html> (May 18,
2001).
"A Science Odyssey: You Try It: Atom Builder." PBS—Public Broadcasting System (Web
site). <http://www.pbs.org/wgbh/aso/tryit/atom/> (May 18, 2001).
"Table of Inorganic Ions and Rules for Naming Inorganic Compounds." Augustana College (Web
site.) <http://inst.augie.edu/~dew/242mat.htm> (June 1, 2001).
"Virtual Chemistry Lab." University of Oxford Department of Chemistry (Web
site). <http://www.chem.ox.ac.uk/vrchemistry/complex/menubar.html> (June 1, 2001).
Readmore:http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Ions-and-Ionization-
Real-life-applications.html#ixzz3oEIpNoAM

12. Republic of the Philippines
Department of Education
Region VII, Central Visayas
Division of Lapu-Lapu City
STA. ROSA NATIONAL HIGH SCHOOL
Sta. Rosa, Lapu-Lapu City
S.Y. 2015-2016
CERTIFICATION
This is to certify that the Strategic Intervention Material entitled
Ions and Charges of the Representative Elements was
validated before it was used as strategic tool in the classroom.
ELIA G. JUMAO-AS
Secondary Principal I

13. LISTS OF STUDENTS WHO HAVE USED THE SIM
SECTION: GRADE 9-EG
NO NAME OF STUDENT SIGNATURE
1 Bote, Babelyn
2 Badal, Gerly
3 Butalid, Jeca
4 Campo, Ivy Lou
5 Canete,Messiallette
6 Quijano, Jeraslyn
7 Quiapo, Jonalyn
8 Suico, Reslie
9 Igot, Ma. Jessa
10 Siton, April Mae
11 Igot, Aileen
12 Ompad, Eishien Angelu
13 Igot, Emmarie Ann
14 Minguito, Maricris
15 Jumao-as, Divine Grace
16 Sagarino, Lynmae
17 Tradio, Elmer
18 Amit, Lovely Sheine
19 Amit, Valerie
20 Abano, Aaliyah Marie
21 Amorin, Rosemarie
22 Arong, Queen Elizabeth
23 Amorin, Dory Jean
24 Lauron, John Clyde
25 Amorin, Charjuan
26 Bautista, Franco
27 Abesia, John Pearson

14. DOCUMENTATION
Section: Grade 9-EG

15. RESULTS AND DISCUSSION
BEFORE USING THE SIM
Group
No.
No. of
Student
s
Act.
1(21
pts.)
Act.2
(5
pts.)
Act.3
(10
pts.)
Assess
ment(5
pts.)
%
Ave.
Score
% Ave.Sc
ore
% Ave.Sc
ore
% Ave.Score %
1 4 20 95 5 100 8 80 4 80
2 4 20 95 3 60 8 80 4 80
3 4 18 86 3 60 8 80 3 60
4 4 18 86 3 60 8 80 3 60
Overall
Average
14 90.5 3.5 70 8 80 3.25 70
AFTER USING THE SIM
Group
No.
No. of
Student
s
Act.
1(21
pts.)
Act.2
(5
pts.)
Act.3
(10
pts.)
Assess
ment(5
pts.)
%
Ave.
Score
% Ave.Sc
ore
% Ave.Sc
ore
% Ave.Score %
1 4 21 100 5 100 9 90 5 100
2 4 21 100 5 100 10 100 5 100
3 4 21 100 5 100 10 100 5 100
4 4 21 100 5 100 9 90 5 100
Overall
Average
21 100 5 100 9.5 95 5 100
There was really a blast made by the students even at the start of Activity 1 with
the aid of the Periodic Table of the Elements, a leap of 9.5 %. In Activity 2, there
was an increase of 30 % since then the simplicity of the charged was easily
determined either a cation or anion. In Activity 3, the first illustration sample of the
ions was given and had helped a lot in ranging a 15% hike. Lastly, the assessment
proved that their heightened performance of 30% was evidently forecasted that
they have mastered the whole concept of IONS AND CHARGES OF THE
REPRESENTATIVE ELEMENTS.

16. CONCLUSION
The wide use of the SIM created and developed critical thinking at the
same time enjoying and made learning for fun on the concepts of IONS
AND CHARGES OF THE REPRESENTATIVE ELEMENTS. Therefore the use of
the SIM as guide should be recommended as an effective tool in providing
them drills, activities or even exercises.
I have found that if you love education,
Education will love you back…
Author unknown
Continue to inspire and kept inspiring…… God Bless to all of us. Enjoy
Working and Happy Teaching!!!!!!