topic 4 periodic table (2)

7/29/2019 Topic 4 Periodic Table (2)

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TOPIC 4: PERIODIC TABLE OF ELEMENTS

1 Elements in the Periodic Table are arranged according to the

Unsur-unsur di dalam Jadual Berkala disusun berdasarkan

A number of electrons

bilangan elektron

B number of neutronsbilangan neutron

C nucleon number

nombor nukleon

D proton numbernombor proton

2 Element P is placed in Group 15 and Period 2.

What is the proton number for P ?

Unsur P terletak dalam Kumpulan 15 dan Kala 2.

Apakah nombor proton bagi P ?

A 2

B 7

C 15D 17

3 Element M forms two different chlorides MCl2 and MCl3.What is M ?

Unsur M membentuk dua jenis klorida MCl2 dan MCl3 . Apakah M ?

A Iron

Ferum

B Lead

Plumbum

C Zinc

ZinkD Copper

Kuprum

4 Which of the following elements is suitable to be used in the advertisement light bulb?Antara unsur berikut, yang manakah digunakan dalam lampu iklan?

A

B

Neon

Neon

Argon

Argon


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7

The diagram shows a part of the Periodic Table of elements.

Rajah menunjukkan sebahagian daripada Jadual Berkala Unsur.

Y W X

Z

Which of the following elements W,X,Y and Z in the Periodic Table is suitable to be usedin the fluorescent lamps?

Antara unsur W,X,Y dan Z yang manakah digunakan dalam lampu berpendaflour?

A

B

C

D

W

X

Y

Z

8 Diagram 2 shows the position of atom X in the Periodic Table.

The electron arrangement of atom X is 2.8.y.

Rajah 2 menunjukkan kedudukan atom X di dalam Jadual berkala.

Susunan elektron bagi atom X ialah 2.8.y

X

Diagram 2

Rajah 2

What is the value of y?

Apakah nilai y

A 1B 3

C 5

D 7

9 Neon gas does not react with other elements because

Gas neon tidak bertindak balas dengan unsur lain kerana

A exists as monoatomic gases

wujud sebagai gas monoatom

B always combines with itself

sentiasa bergabung dengan diri sendiri


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12 Figure 6 shows four elements in the Periodic Table of Elements.

Which of the element can form coloured compound?

Rajah 6 menunjukkan empat unsur dalam Jadual Berkala Unsur.

Unsur yang manakah boleh membentuk sebatian berwarna?

13 Which of the following is a property of iodine?

Antara berikut, yang manakah sifat iodin?

A

B

C

D

Becomes purple gas when heatedMenjadi gas ungu apabila dipanaskan

More electronegative than bromine

Lebih elektronegatif daripada bromin

Exists as yellow liquid at room conditions

Wujud sebagai cecair kuning pada keadaan bilik

Dissolves in water to form an alkaline solution

Larut dalam air membentuk larutan beralkali

14 Sodium and potassium are elements in group 1 of the Periodic Table of Elements.Which of the following statements is correct?

A Sodium has 1 valence electronB Sodium is a non-metal elementC Sodium is chemically unreactiveD Sodium cannot conduct electricity

Figure 6


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1 Diagram 2 shows part of the Periodic Table of the Elements. C, D, E, F, G, and H do not

represent the actual symbol of the elements.

Rajah 2 menunjukkan sebahagian daripada Jadual Berkala Unsur. C, D, E ,F,G danHtidak

mewakili simbol sebenar unsur-unsur berkenaan.

Diagram 2

Rajah 2

Using the letters in the Periodic Table of the Elements in Diagram 2, answer the following

questions.

Dengan menggunakan huruf-huruf yang terdapat dalam Jadual Berkala pada Rajah 2,

jawab soalan-soalan berikut.

(a) State the position of element C in the Periodic Table.

Nyatakan kedudukan unsurC dalam Jadual Berkala.

[2 mark]

[2 markah]

(b) Element D react with water to produce alkaline solution and hydrogen gas.

UnsurD bertindak balas dengan air untuk menghasilkan larutan beralkali dan gas

hidrogen.

Write the chemical equation of the reaction.

Tuliskan persamaan kimia bagi tindak balas ini.

[2 marks]

[2 markah]

(c) D and G have the same chemical properties.

D dan G mempunyai sifat-sifat kimia yang sama.

(i) Which element is more reactive?

Unsur yang manakah yang lebih reaktif?

[1 mark]

[1 markah]

C

D

E

H

F

G


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(ii) Explain your answer in (c) (i).

Terangkan jawapan anda dalam (c) (i).

[2 marks]

[2 markah]

(d) (i) Which element is chemically inert ?

Unsur yang manakah lengai secara kimia ?

[1 mark]

[1 markah]

(ii) Explain your answer in (d) (i) .

Terangkan jawapan anda dalam (d) (i).

[1 mark]

[1 markah]

(e) State one special characteristic of elements H.

Nyatakan satu ciri istimewa unsur H.

[1 mark]

[1 markah]


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2 Diagram 1 shows part of the Periodic Table of Elements. A, B, C, D, E, F, and G do

not represent the actual symbol of the elements.

Rajah 1 menunjukkan sebahagian daripada Jadual Berkala Unsur. A, B, C, D, E, Fdan G tidak mewakili simbol sebenar unsur berkenaan.

A B C D

E F

G

Diagram 1Rajah 1

Using the letters in the Periodic Table of Elements in Diagram 1, answer the followingquestions.

Dengan menggunakan huruf-huruf yang terdapat dalam Jadual Berkala Unsur padaRajah 1, jawab soalan-soalan berikut.

(a) (i) State the elements that are placed in Period 3.

Nyatakan unsur-unsur yang terletak dalam Kala 3.

.

[1 mark][1 markah]

(ii) How does the electronegativity of the elements stated in (a) (i) change acrossthe period?

Bagaimanakah keelektronegatifan unsur-unsur tersebut dalam (a)(i) berubahapabila merentasi kala?

. [1 mark]

[1 markah](b) (i) Element B exists as isotopes. What is meant by isotopes?

Unsur B wujud sebagai isotop. Apakah yang dimaksudkan dengan isotop?

..

.. [1 mark]

[1 markah](ii) State one use of isotope of element B in daily life.

Nyatakan satu kegunaan isotop bagi unsur B dalam kehidupan harian.

..

[1 mark][1 markah]


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(c) (i) Choose one element that is chemically unreactive.

Pilih satu unsur yang bersifat lengai secara kimia.

... [1 mark]

[1 markah]

(ii) Explain your answer in (c) (i).Terangkan jawapan anda dalam (c) (i).

.. [1 mark]

[1 markah]

(d) (i) State an element that can react with water to produce hydrogen gas.

Nyatakan satu unsur yang boleh bertindak balas dengan air untukmenghasilkan gas hidrogen.

.. [1 mark]

[1 markah]

(ii) Write a balanced chemical equation for the reaction stated in (d) (i).Tulis persamaan kimia seimbang bagi tindak balas yang dinyatakan dalam (d)(i).

..

[1 mark]

[1 markah]

(e) Write the electron arrangement for an atom of element F.Tulis susunan elektron bagi atom unsur F.

.. [1 mark]

[1 markah]

(f) Which element forms coloured ions in aqueous solution?

Unsur yang manakah membentuk ion berwarna dalam larutan akueus?

[1 mark]


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3 Diagram 2 shows part of the Periodic Table of the Elements. W, X, Y and Z do not represent the actual symbol of the elements.Rajah 2 menunjukkan sebahagian daripada Jadual Berkala Unsur.W, X, Y danZ tidak mewakili simbol sebenar unsur berkenaan.

X Z Y W

Diagram 2Rajah2

Using the letters in the Periodic Table of the Elements in Diagram 2, answer thefollowing questions.

(a) Choose an element that is an inert gas.Pilih satu unsur gas nadir.

..........[1 mark]

(b) (i) Arrange W,X, Y and Z according to the decrease in size of atoms.Susun W,X, Y danZ mengikut pengurangan saiz atom.

.

[1 mark]

(ii) Explain the answer in (b) (i).Terangkan jawapan anda dalam(b) (i).

.

.

. [2 marks]

(c) (i) Which element is a transition element?Unsur yang manakah merupakan unsur peralihan?

. [1 mark]

(ii) State one special characteristic of transition element.Nyatakansatuciri istimewa unsur peralihan.

. [1 mark]


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(d) Draw the electron arrangement for ion X.

[1 mark]

(e) Write the chemical equation when X reacts with oxygen

...

[2 marks]

4 (a) Table 7.1 shows the electron arrangements of atoms W, X and Y. Theseletters are notthe actual symbols of the elements.

Elementunsur

Electron arrangementSusunan elektron

W

X

Y

Table 7.1

W

X

Y


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Based on the table,

(i) State one element that is metal and one element that is non-metal.Nyatakan satu unsur logam dan satu logam unsur bukan logam.

[2 marks][2 markah]

(ii) State the position of element W in the Periodic table of Element. Explain youranswer.Nyatakan kedudukan unsur W dalam Jadual Berkala Unsur. Jelaskan jawapan anda.

[3 marks][3 markah]

(ii) Compare the atomic size of element X and element Y. Explain your answer.Bandingkan saiz atom unsur X dan unsur Y. Terangkan jawapan anda.

[4 marks][4 markah]

(b) A,D and E are placed in Period 3 of the Periodic Table of Elements.The oxides of

these elements show different properties when react with nitric acid and sodiumhydroxide solution. Table 7.2 shows the properties of the oxides of the elements.

Unsur-unsur A, D dan E berada dalam Kala 3 Jadual Berkala Unsur.Oksida-oksida unsurtersebut menunjukkan sifat yang berbeza apabila bertindak balas dengan asid nitric danlarutan natrium hidroksida. Jadual 7.2 menunjukkan sifat-sifat oksida bagi unsur-unsurtersebut.

OxideOksida

ObservationPemerhatian

Reaction with nitric acid

Tindak balas dengan asidnitrik

Reaction with sodium

hydroxide solution

Tindak balas dengan larutannatrium hidroksida

Oxide of Element AOksida unsur A

White solid dissolves toform colourless solution

Pepejal putih larut danmembentuk larutan tidakberwarna

No change .White soliddoes not dissolve.

Tiada perubahan.Pepejal putihtidak larut

Oxide of Element DOksida unsur D

White solid dissolves to

form colourless solution.


White solid dissolves to

form colourless solution


Oxide of Element EOksida unsur E

No change. White soliddoes not dissolve.

Tiada perubahan.Pepejal putihtidak larut

White solid dissolves toform colourless solution.


Table 7.2


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Jadual 7.2

Based on table 7.2,Berdasarkan Jadual 7.2,

(i) State the acid-base properties of the oxide of A , oxide of D and oxide of E.Explain.Nyatakan sifat-sifat asid-bes bagi oksida A, oksida D dan oksida E. Terangkan.

[6 marks][6 markah]

(ii) Suggest the name of element A, element D and element E.Cadangkan nama bagi unsur A, unsur D dan unsur E.

[3 marks][3 markah]

(iii) Write the chemical equation for the reaction between oxide of A and nitricacidTuliskan persamaan kimia bagi tindak balas antara oksida A dan asid nitrik.

[2 marks][2 markah]

topic 4 periodic table (2)

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