Periodic classification of element

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1) In the modern periodic table, elements are arranged in an ………. order of their atomic numbers.

2 points

(a) Decreasing

(b) Increasing

(d) None of these

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2) Mendeleev organized the periodic table on the basis of

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(a) Chemical properties of element

(b) Physical properties of elemement

(d) None of these

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(3) Identify the following element which is is not a halogen?

2 points

(a) Florine

(b) Chlorine

c) Iodine

(d) Calcium

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(4) Uranium has atomic number

2 points

(a) 92

(b) 88

(d) 94

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5) In modern Periodic table , groups 13 to 18 constitute

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(a) S block

(b) P block

(d) f block

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6) The d-block elements are called as

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(a) metalloids

(b) non metal

(d) None of these

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7) Which of the following set of elements is written in order of their increasing metallic character?

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(a) Na < Li < K

(b) C < Q < N

(d) Be < Mg < Ca

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8) The electronic configuration of Sodium is

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(a) (2, 8 ,3)

(b) (2, 8 ,8,1)

(d) (2, 8 ,1)

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9) What is the electron capacity of L shell

2 points

A) 2

B) 8

C) 18

D) 32

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10) Most electronegative element of Periodic table is

2 points

a) Iodine

(b) Sulphur

(d) Florine

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