Question # 1

Long form of periodic Table is constructed the basis of:

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Mendeleev postulate

atomic number

atomic mass

mass number

Th name of chemist who arranged all the elements in the periodic tale is :

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J.Newlands

Columb

Einstine

None of these

The number of periods is:

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6

7

8

9

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

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lattice energy

ionization energy

electronegative

electron affinity

The repetition of a property after a certain interval is:

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Periodicity

Properties

Periodicity of properties

None

The atomic number of potassium is:

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11

15

18

19

The no. of electrons in the valence shell of alkali metals is

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1

2

4

7

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

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short periods

Normal periods

Long periods

Very long periods

The elements of group 17 are called:

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Carbon family

Noble gases

Alkaline earth metals

Halogen family

4th & 5th consist of ________________ elements.

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8

18

32

infinite

Which element has highest electronegativity?

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CI

F

Br

I

.................... of an atom is not fixed.

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Size

Mass

Electronegativity

Nuclear char

The 2nd and third periods are called

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short period

Normal period

Long period

Very long period

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9th Class Chemistry Chapter 3 Periodic Table and Periodicity of Properties English Medium KPK Boards Online Mcqs MCQs With Answers

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