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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

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

2 / 80

Group-1 is also called:

3 / 80

Atomic size of lithium is ___________

4 / 80

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

5 / 80

In which year Mendeleev described his periodic law?

6 / 80

The elements or group 3 to 12 are called:

7 / 80

In which year Moseley described his periodic law?

8 / 80

Who are arranged the elements in groups of three

9 / 80

How many elements present in 1st period?

10 / 80

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

11 / 80

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

12 / 80

Unit of electron affinity is ___________

13 / 80

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

14 / 80

Mark the incorrect statement about ionization energy:

15 / 80

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

16 / 80

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

17 / 80

Which element has high value of electro negativity ?

18 / 80

Electron affinity of fluorine in kjmil-1 is

19 / 80

All transition elements are _________ .

20 / 80

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

21 / 80

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

22 / 80

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

23 / 80

Transition elements are:

24 / 80

Elements of a period show properties?

25 / 80

The elements of a group show __________ properties:

26 / 80

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

27 / 80

Mendeleev’s periodic table was based upon the

28 / 80

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

29 / 80

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

30 / 80

The unit of ionization energy is:

31 / 80

Atomic number of actinium is:

32 / 80

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

33 / 80

The vertical columns present in the periodic table are called __________

34 / 80

Lanthanides series is started from the elements:

35 / 80

How many elements block present in modern periodic table?

36 / 80

Lanthanide is belonged to period:

37 / 80

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

38 / 80

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

39 / 80

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

40 / 80

Group number tells about the:

41 / 80

Which elements are present in 2nd period

42 / 80

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

43 / 80

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

44 / 80

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

45 / 80

When we move from top to bottom ionization energy __________ .

46 / 80

How many groups are present in the modern periodic table?

47 / 80

Point out the incorrect statement about electron affinity

48 / 80

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

49 / 80

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

50 / 80

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

51 / 80

Group-17 elements are known as:

52 / 80

Actinide series is started from the elements:

53 / 80

The first ionization energy of sodium atom is ______

54 / 80

Period number tells about the:

55 / 80

The atomic radii of the elements in periodic table

56 / 80

The horizontal lines present in the periodic table are called ________

57 / 80

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

58 / 80

Which element are present in group-1?

59 / 80

How many periods are present in the modern periodic table?

60 / 80

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

61 / 80

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

62 / 80

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

63 / 80

Actinides are belonged to period:

64 / 80

How many elements present in 7th period?

65 / 80

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

66 / 80

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

67 / 80

How many elements present in 6th period?

68 / 80

Atomic size of Neon is ____________

69 / 80

Atomic number of lanthanum is:

70 / 80

Along the period, which one of the following decreases:

71 / 80

Long form of periodic table is constructed on the bases of

72 / 80

Elements with atomic No 90 to 103 are called:

73 / 80

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

74 / 80

All transition elements are belonged to:

75 / 80

Normal elements are belonged to:

76 / 80

Unit of atomic size is _________

77 / 80

Who were trying to convert inferior metals to superior metals?

78 / 80

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

79 / 80

Element with Atomic no 58 to 71 are called:

80 / 80

Which elements are present in 1st Group

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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 thoughts 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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