Question # 1

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

Group runs from ________________

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Top to bottom

Left to right

Top to right

Bottom to left

Transition elements are:

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all gases

all metals

all non-metals

all metalloids

The no.of elements in the first period is

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2

8

18

23

Mendeleev periodic table was based upon the:

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electronic configuration

atomic mass

atomic number

completion of a subshell

Modern periodic table can be classified into ________________.

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Elements

s, p, d, f blocks

Periods

ROWS

Along the period which one of the following decrease:

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Atomic radius

ionization energy

electron affinity

electronegative

The base of modern periodic table is

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Atomic number (Z)

Mass number (A)

Avogadro's Number

Quantum Number

The right most position in the periodic table is occupied by:

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Alkall metals

Alkaline earth metals

Translation metals

Noble gasses

The 2nd and third periods are called

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short period

Normal period

Long period

Very long period

Long form of periodic Table is constructed the basis of:

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Mendeleev postulate

atomic number

atomic mass

mass number

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

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1

2

4

7

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