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9th Class Chemistry Chapter 3 Periodic Table and Periodicity of Properties English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Mendeleev periodic table was based upon the:
Choose an answer
electronic configuration
atomic mass
atomic number
completion of a subshell
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Question # 2
Along the period which one of the following decrease:
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Atomic radius
ionization energy
electron affinity
electronegative
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Question # 3
The no.of elements in the first period is
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2
8
18
23
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Question # 4
The elements of group 3 to 12 are called
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Normal elements
Transition elements
Radioactive elements
None of these
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Question # 5
An ________________ scientist arranged the elements in order in periodic table.
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English
Italian
African
Indian
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Question # 6
Modern periodic table can be classified into ________________.
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Elements
s, p, d, f blocks
Periods
ROWS
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Question # 7
The 2nd and third periods are called
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short period
Normal period
Long period
Very long period
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Question # 8
The modern periodic table is based on:
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Atomic number
Mass number
Relative mass
Nil
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Question # 9
The no. of electrons in the valence shell of alkali metals is
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1
2
4
7
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Question # 10
The other name of modern periodic table is ________________ of periodic table.
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Long form
Simplified
Simplest
Nil
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Question # 11
.................... of an atom is not fixed.
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Size
Mass
Electronegativity
Nuclear char
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Question # 12
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
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Question # 13
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
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