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OBJECTIVES
1.Describe some information about the elements that may
be found in the periodic table.
2.Name the element and write its symbol.
3.State how elements are derived.
4.Appreciate the importance of knowing the symbols and
names of elements.
INTRODUCTION
With all the different substances that exist, you may be
surprised to learn that they are formed from a relatively small
number of elements. For example, carbon is one of 112 known
elements. Yet carbon can combine with other elements (like
hydrogen and oxygen) to form thousands of substances (like
sugar, alcohol, and plastics). Although some elements have
been known from the earliest times, most were discovered
during the last 300 years.
Each element is unique with its own characteristics. Each
element is represented conveniently by a symbol. For
example: H is for hydrogen, O for oxygen, and Cl for chlorine.
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GUIDE CARD
There are 118 elements. Each element has different setof properties. No two elements have the same set of
properties. Having 118 elements is quite a big number!
Thanks to the works of our early scientists, they were able to
systematically organize all of the 118 elements in what we
call the periodic table of elements or sometimes simply
referred as periodic table.
ThePeriodic Tableis a chart which arranges the chemical
elements in a useful, logical manner. Elements are listed in
order of increasing atomic number, lined up so that
elements which exhibit similar properties are arranged in
the same row or column as each other.
http://chemistry.about.com/library/blperiodictable.htmhttp://chemistry.about.com/library/blperiodictable.htmhttp://chemistry.about.com/library/blperiodictable.htmhttp://chemistry.about.com/library/blperiodictable.htm8/13/2019 SIM G7 by Lorena G. Dizon
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Amazingly, they were able to logically arrange the
elements in the table enabling one to have an idea of theproperties of several elements by knowing other elements
related to them. This means that there is no need tomemorize the periodic table but it is an advantage to be
familiar with it.
Thus, in the next activity,you will accustom yourself
with the periodic table.
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ACTIVITY CARD 3
JUM LED Letter ElementsDirection:Use the clues provided to find the correct name of the given
element.
1. I S U M M O _________________
Clue:This element is used to make alloys that are
found in ball point, pens, fountain pen tips
and record players needles.
2. O N D R A _________________
Clue:At room temperature, this element is a
colorless, odorless and radioactive gas.
3. E V E M D M U N I L E _______________
Clue:All atoms of this element contain 101
protons.
4. E P R O P C ___________________
Clue:This elements chemical symbol is Cu.
5. I T I N M A T U __________________
Clue:This elements chemical symbol is Ti.
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ACTIVITY CARD 1
ELEMENT FL SH C RDDIRECTION: Name that Element!
A. What is this element's chemical name?
1. 20
______________________________
2. 2
_______________________________
3. 11
________________________________
4. 30
_______________________________
5. 18
___________________
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B.What are this elements chemical symbols?
1. Americium ____
2. Xenon _____
3. Iridium ____
4. Gadolinium ____
5. Astatine ____
Did you get all correctly?
If yes, very good! If not,
try to review your answers
before you go to the next.
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ACTIVITY CARD 4
Direction:Use the clues provided to solve each crossword puzzle
1
2
3 4
5 6 7 8
9
10
A. Across Symbols:
2. This elements chemical symbol is He.3. This elements chemical symbol is N.
6. This elements chemical symbol is C.
9. This elements chemical symbol is I
10. This elements chemical symbol is U
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B.Down Symbols:
1. This elements chemical symbol is Li.
4. This elements chemical symbol is Ne.
5. This elements chemical symbol is Al.
7. This elements chemical symbol is Ar.
8. This elements chemical symbols is O
Compare your answers with the Answer
Key. Did you get all the answer correctly?
If yes, you did a great job.
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ASSESSMENT CARD
Direction:Choose the letter of the correct answer and write
it on the space provided.
1.How many known elements are there?
a.10 c. 100
b.50 d. 2002.Elements in the periodic table are arranged by__.
a.Atomic Number c. Number of Neutrons
b.Atomic weight d. Chemical reactivity
3.Which of these things will you NOT find in the periodic
table on the wall?
a.Element name and symbols
b.Atomic weightc.Atomic orbital radius
d.Atomic number
4.Which scientist came up with the concept of a periodic
table that included all of the known elements?
a.Jason Priestly c. Antoine Lavoisier
b.Dmitri Mendeleev d. Albert Einstein
5.Rows in the periodic table are called periods.a.True b. False
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6.Which of these choices is NOT a family of elements?
a.Halogen c. Inert Gas
b.Metal d. All are groups of elements.
7.The atomic number of an element tells you the number
of _____ in a neutral atom.
a.Positrons c. Electrons
b.Neutrons d. None of the above
8.The columns of the periodic table are called groups.
a.True b. False
9.You will find metals on the right side of the periodic
table.
a.True b. False
10. Although the order of elements is based on atomicnumber, vertical families share similar chemical properties.
a.True c. False
Did you get all correctly? If yes,very good
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ENRICHMENT CARD
Direction:Can you identify the elements based on how they look? The picture
may contain additional clues about an element's identity.
1. This one is intended to be a confidence builder. These are
diamonds. Diamonds are pure:
(a) Boron (c) Iron
(b) Carbon (d) Nitrogen
2. This yellow element is a component of gunpowder.
(a) Chlorine (c) Gold
(b) Copper (d) Sulfur
http://0.tqn.com/d/chemistry/1/0/6/R/sulfur1.jpghttp://0.tqn.com/d/chemistry/1/0/n/P/diamonds.jpghttp://0.tqn.com/d/chemistry/1/0/6/R/sulfur1.jpghttp://0.tqn.com/d/chemistry/1/0/n/P/diamonds.jpghttp://0.tqn.com/d/chemistry/1/0/6/R/sulfur1.jpghttp://0.tqn.com/d/chemistry/1/0/n/P/diamonds.jpg8/13/2019 SIM G7 by Lorena G. Dizon
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3. This metallic element looks much like many others. The big clue for
this metal's identity is clue for this metal's identity is how it is being
used. This element is:
(a) Silicon (c) Iron
(b) Titanium (d) Beryllium
4. This metallic element is a liquid at room temperature. It is:
(a) Mercury (c) Iron
(b) Lead (d) Bromide
5 This yellowish metal occurs in its pure form, but it is usually
encountered as an alloy. The element is:
(a) Platinum (c) Gold
(b) Indium (d) Copper
http://0.tqn.com/d/chemistry/1/0/r/8/1/1Gold-crystals.jpghttp://0.tqn.com/d/chemistry/1/0/f/9/1/liquidmercury.jpghttp://0.tqn.com/d/chemistry/1/0/l/Q/lead.jpghttp://0.tqn.com/d/chemistry/1/0/r/8/1/1Gold-crystals.jpghttp://0.tqn.com/d/chemistry/1/0/f/9/1/liquidmercury.jpghttp://0.tqn.com/d/chemistry/1/0/l/Q/lead.jpghttp://0.tqn.com/d/chemistry/1/0/r/8/1/1Gold-crystals.jpghttp://0.tqn.com/d/chemistry/1/0/f/9/1/liquidmercury.jpghttp://0.tqn.com/d/chemistry/1/0/l/Q/lead.jpg8/13/2019 SIM G7 by Lorena G. Dizon
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AGREEMENT CARD
Direction:Give the chemical name of some elements whose
symbol is written in blue color.
Periodic Table Game
Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period
11H
2He
23Li
4Be
5B
6C
7N
8O
9F
10Ne
311Na
12Mg
13Al
14Si
15P
16S
17Cl
18Ar
419
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
537Rb
38Sr
39Y
40Zr
41Nb
42Mo
43Tc
44Ru
45Rh
46Pd
47Ag
48Cd
49In
50Sn
51Sb
52Te
53I
54Xe
6 55Cs
56Ba
* 71Lu
72Hf
73Ta
74W
75Re
76Os
77Ir
78Pt
79Au
80Hg
81Tl
82Pb
83Bi
84Po
85At
86Rn
787Fr
88Ra
**103Lr
104Rf
105Db
106Sg
107Bh
108Hs
109Mt
*lanthanides57La
58Ce
59Pr
60Nd
61Pm
62Sm
63Eu
64Gd
65Tb
66Dy
67Ho
68Er
69Tm
70Yb
**actinides89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
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m/cgi-bin/pt.cgi?A1=r&A2=1&A3=cA&A4=0&A11=0&A12=0&ACOMMON=18/13/2019 SIM G7 by Lorena G. Dizon
18/26
REFERENCE CARD
ThePeriodic Tableis a chart which arranges the chemical elements in a
useful, logical manner. Elements are listed in order of increasing atomic
number, lined up so that elements which exhibit similar properties are
arranged in the same row or column as each other. The Periodic Table is one
of the most useful tools of chemistry and the other sciences. Here are 10 fun
and interesting Periodic Table facts:
1. WhileDmitri Mendeleevis most often cited as the inventor of the
modern periodic table, his table was just the first to gain scientific
credibility, andnot the first tablethat organized the elements
according to periodic properties.
2. There are90 elementson the periodic table that occur in nature. All of
the other elements are strictly man-made.3. Technetiumwas the first element to be made artificially.
4. The International Union of Pure Applied Chemistry, IUPAC, revises the
periodic table as new data becomes available. At the time of this
writing, the most recent version of the periodic table was approved 19
February 2010.
5. The rows of the periodic table are called periods. An element's periodnumber is the highest unexcited energy level for an electron of that
element.
http://chemistry.about.com/library/blperiodictable.htmhttp://chemistry.about.com/library/blperiodictable.htmhttp://chemistry.about.com/od/famouschemists/p/mendeleevbio.htmhttp://chemistry.about.com/od/famouschemists/p/mendeleevbio.htmhttp://chemistry.about.com/od/famouschemists/p/mendeleevbio.htmhttp://chemistry.about.com/od/periodictableelements/f/who-invented-the-periodic-table.htmhttp://chemistry.about.com/od/periodictableelements/f/who-invented-the-periodic-table.htmhttp://chemistry.about.com/od/periodictableelements/f/who-invented-the-periodic-table.htmhttp://chemistry.about.com/od/elementfaqs/f/How-Many-Elements-Are-Found-In-Nature.htmhttp://chemistry.about.com/od/elementfaqs/f/How-Many-Elements-Are-Found-In-Nature.htmhttp://chemistry.about.com/od/elementfacts/a/technetium.htmhttp://chemistry.about.com/od/elementfacts/a/technetium.htmhttp://chemistry.about.com/od/elementfaqs/f/How-Many-Elements-Are-Found-In-Nature.htmhttp://chemistry.about.com/od/periodictableelements/f/who-invented-the-periodic-table.htmhttp://chemistry.about.com/od/famouschemists/p/mendeleevbio.htmhttp://chemistry.about.com/library/blperiodictable.htm8/13/2019 SIM G7 by Lorena G. Dizon
19/26
6. Columns of elements help to distinguish groupsin the periodic table.
Elements within a group share several common properties and often havethe same outer electron arrangement.
7. Most of the elements on the periodic table are metals. The alkali
metals, alkaline earths, basic metals, transition metals, lanthanides and
actinides all are groups of metals.
8. The present periodic table has room for 118 elements. Elements aren't
discovered or created in order of atomic number. Scientists are working
on creating and verifying element 120, which will change the appearanceof the table.
9. Although you might expect atoms of an element to get larger as their
atomic number increases, this does not always occur because the size of
an atom is determined by the diameter of its electron shell. In fact,
element atoms usually decrease in size as you move from left to right
across a row or period.
10.The main difference between the modern periodic table and Mendeleev's
periodic table is that Mendeleev's table arranged the elements in order ofincreasing atomic weight while the modern table orders the elements by
increasing atomic number.
Read moreIntegrated Science and Technology by Aurora
Alarcon LiankoUP NISMED: Teachers and Students Modular for
Grade
8/13/2019 SIM G7 by Lorena G. Dizon
20/26
ANSWER CARD
HOW WELL DID YOU SCORE?ACTIVITY NO 1
A B ACTIVITY NO 2
1.Calcium 1.Am 1. Helium : He
2.Helium 2. Xe 2. Radium : Ra
3.Sodium 3. Ir 3. Tantalum: Ta
4.Zinc 4. Gd 4. Curium: Cm
5.Argon 5. At 5. Einsteinium: Es
ACTIVITY NO 3 ACTIVITY NO 4
1. Osmium 1. Lithium 6. Carbon
2. Radon 2. Helium 7. Argon
3. Mendelevium 3. Nickel 8. Oxygen
4. Copper 4. Neon 9. Iodine
5. Titanium 5. Argon 10. Uranium
8/13/2019 SIM G7 by Lorena G. Dizon
21/26
ACTIVITY NO 5
1. Aluminum
2. Silver
3. Lead
4. Calcium
5. Sulfur
ASSESSMENT CARD ENRICHMENT CARD
1. C 6. D 1. B
2. A 7. C 2. D
3. C 8. A 3. C
4. B 9. B 4. A
5. A 10. A 5. D
8/13/2019 SIM G7 by Lorena G. Dizon
22/26
ACTIVITY CARD 2
Chemical Elements: Origins of Names
Direction: Identify the name and symbols of the following elements.1. From the Greek word "Helios" - the Sun. In 1868 during an eclipse
of the Sun, Scientists observed a spectral line caused by an unknown
element. Twenty seven years later in 1895, the element was
discovered on Earth._____________________ ________
Name Symbol
2. From the Latin word "radius" which means "ray of light". It was
discovered in 1898 by Pierre and Marie Curie. It gives out invisibleand dangerous radiation ie. it is radioactive. When concentrated,
radium glows in the dark.
_______________________ ________
Name Symbol
3. Named after the Greek mythological king, Tantalus. It was
discovered in 1802 and great difficulties were encountered in
dissolving its oxide in acid to form salts. It proved to be a
tantalizing problem!
_______________________ ________
Name Symbol
4. Made in 1944 at Chicago. It was named in honour of Marie and
Pierre Curie.
_______________________ ________
Name Symbol
5. Made in 1952 at the University of California. It was named in honour
of Albert Einstein._______________________ ________
Name Symbol
8/13/2019 SIM G7 by Lorena G. Dizon
23/26
ACTIVITY CARD 5Common Uses &/or Descriptions.
Direction: Choose the correct letter and place it inside the box.
1. A light metal used in making airplanes, buildings, pots and pans and
other.
a. Aluminun c. Gallium
b. Gold d. Neon
2. Used in tableware, jewelry, photography, medicines, and coins.a. Lead c. Gold
b. Silver d. Copper
3. A metal used in automobile batteries and in fishing and diving
weights.
a. Iron c. Mercury
b. Nickel d. Lead
4. A soft, metallic chemical element found in limestone, marble,
chalk.
a. Calcium c. Chlorine
b. Sulfur d. Boron
5. Used to make sulfuric acid and some medicines such as pet
powders.
a. Potassium c. Magnesium
b. Sulfur d. Sodium
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