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Chemistry Notes for Class 9 Chapter 3

Periodic Table and Periodicity of Properties:

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Chemistry Chap#03 9th Class

Chemistry Chap#03, 9th Class

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1 / 80

Elements of group 13 to 18 have their valence electrons in sub shell.

2 / 80

In Periodic Table, 2nd & 3rd period are called _______

3 / 80

The horizontal lines present in the periodic table are called ________

4 / 80

Lanthanide is belonged to period:

5 / 80

How many elements present in 1st period?

6 / 80

Who were trying to convert inferior metals to superior metals?

7 / 80

How many elements present in 4th & 5th Period?

8 / 80

In which year Newland put forward his observation I the form of law of octaves?

9 / 80

When we move from left to right in a period ionization energy is ___________.

10 / 80

The ability of an atom to attract the shared pair of electrons toward, itself in a molecule is called:

11 / 80

Which element has high value of electro negativity ?

12 / 80

Atomic number of lanthanum is:

13 / 80

How many elements present in 6th period?

14 / 80

The atomic radii of the elements in periodic table

15 / 80

Transition elements are:

16 / 80

The vertical columns present in the periodic table are called __________

17 / 80

The group-1 and group-2 and group-13 to group-17 contain the elements:

18 / 80

Unit of atomic size is _________

19 / 80

Normal elements are belonged to:

20 / 80

When we move from left to right in a period shielding effect is ___________

21 / 80

All transition elements are belonged to:

22 / 80

The distance between the Nuclei of two carbon atoms in its elements form is ___________

23 / 80

Long form of periodic table is constructed on the bases of

24 / 80

How many elements were present in Mendeleev’s periodic table?

25 / 80

Which period of the modern periodic table is considered as incomplete period

26 / 80

With increase atomic number, the number of electrons in an atom also ______

27 / 80

Unit of electron affinity is ___________

28 / 80

How many groups are present in the modern periodic table?

29 / 80

Period number tells about the:

30 / 80

How many periods are present in the modern periodic table?

31 / 80

The amount of energy released when an electron is added in the outermost shell of an isolated gaseous atom is called

32 / 80

The minimum amount o energy which is required to remove an electron from the gaseous state of an atom is called

33 / 80

Point out the incorrect statement about electron affinity

34 / 80

The elements or group 3 to 12 are called:

35 / 80

Groups-17 elements contains electrons in their outer most shell:

36 / 80

Moseley arranged the elements in his periodic table on the basis of:

37 / 80

Atomic number of actinium is:

38 / 80

Which one of the following halogens has lowest electron-egativity?

39 / 80

Mendeleev’s periodic table was based upon the

40 / 80

How many electrons present in the valence shell of group-1 elements?

41 / 80

Mark the incorrect statement about ionization energy:

42 / 80

Elements of group 1 & 2 have their valence electrons in sub shell.

43 / 80

How many elements block present in modern periodic table?

44 / 80

Elements are classified into four blocks depending upon the type of the

45 / 80

The first ionization energy of sodium atom is ______

46 / 80

When we move from top to bottom ionization energy __________ .

47 / 80

Element with Atomic no 58 to 71 are called:

48 / 80

How many elements present in 2nd & 3rd Period?

49 / 80

The unit of ionization energy is:

50 / 80

Which elements are present in 2nd period

51 / 80

4th and 5th period of the long form of periodic table are called

52 / 80

When we move from top to bottom in a group atomic size is __________.

53 / 80

Group number tells about the:

54 / 80

When we move left to right in a period atomic number _________

55 / 80

In which year Moseley described his periodic law?

56 / 80

When we move from top to bottom in a group shielding effect is ____________.

57 / 80

Elements of a period show properties?

58 / 80

Which elements are present in 1st Group

59 / 80

Actinides are belonged to period:

60 / 80

Along the period, which one of the following decreases:

61 / 80

In which year Mendeleev described his periodic law?

62 / 80

How many elements present in 7th period?

63 / 80

Group-17 elements are known as:

64 / 80

All transition elements are _________ .

65 / 80

In modern periodic table the elements in a group do not have continuously increasing

66 / 80

The amount of energy given out when an electron is added to an atom is called ____________

67 / 80

  1. Who determined the correct atomic masses of elements in 1860?

68 / 80

Group-1 is also called:

69 / 80

Atomic size of lithium is ___________

70 / 80

Elements with atomic No 90 to 103 are called:

71 / 80

Mendeleev arranged elements in his periodic table on the basis of:

72 / 80

Which element are present in group-1?

73 / 80

The elements of a group show __________ properties:

74 / 80

When we move from left to right in a period atomic size is _____________

75 / 80

Electron affinity of fluorine in kjmil-1 is

76 / 80

Lanthanides series is started from the elements:

77 / 80

Actinide series is started from the elements:

78 / 80

In which century chemists devoted to arrange the elements in a systematic manner:

79 / 80

Who are arranged the elements in groups of three

80 / 80

Atomic size of Neon is ____________

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Chemistry Notes, Problems for Class 9th

Chemistry, a new subject for 9th Class, having a lot of concepts, starting from a single definition of the smallest particle of our universe which is called ‘atom’. In the 8th grade usually, we have to study only one book of science that combines chemistry, physics, and biology. But as, we got into 9th class and with every passing day things starts to get more complex now. similarly we got three books instead of just one science book.

And, if you any student of 9th Class feeling difficult to understand the concept of chemistry. Then, these chemistry notes for class 9 are enough. by Understanding chemistry Notes for 9th class means remembering a lot of concepts. Consider that particular subject important in which you want to study for your whole life. And, read more than just the textbook about that particular subject. If you think you want to study chemistry for your whole life that’s great, our country also need chemists.

Chemistry class 9 pdf

If any student searching to topics like Chemistry Notes for 9th class,  Chemistry Notes for Class 9 pdf, Chemistry Notes for Class 9 MCQs, Chemistry Notes for class 9 Gujranwala board, Chemistry Notes for class 9 Lahore board, Class 9 Chemistry notes chapter 3, Chemistry class 9 chapter 3 pdf, Chemistry class 9 chapter-3 short questions, kips notes of chemistry for 9 class, 9th class chemistry solved exercises chapter 3, chemistry class 9 chapter 3 structure of atom, 9th class chemistry notes in English pdf download, 9th class chemistry solved exercises chapter 3 pdf, 9th class chemistry solved exercises chapter 3,  9th class chemistry notes in Urud pdf download, Chemistry class 9 chapter-3 solved exercise pdf, Chemistry Notes for Class 9 Chapter-3, 9th class chemistry notes in Urdu pdf download, Chemistry class 9 pdf, then all the solution if your problem is available within our website eStudent.pk

 

 

Chapter wise PDF Notes / Problems / Solution of Chemistry 9th Class

                     Chapter-01 – Fundamentals of Chemistry

                     Chapter-02 – Structure of Atoms 

                     Chapter-03 – Periodic Table and Periodicity of Properties

                     Chapter-04 – Structure of Molecules 

                     Chapter-05 – Physical States of Matter 

                     Chapter-06 – Solutions 

                     Chapter-07 – Electrochemistry 

                     Chapter-08 – Chemical Reactivity 

                     Pairing Scheme for 2021 – Chemistry 9th Class

 

 

 

2 thought on “Chemistry Notes for Class-9 Chapter-3”
  1. Anonymous says:

    I am doubt on MCQ no 61 .I think my answer is correct ?

  2. Kennith Marria says:

    look forward to your next post

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