Match the element in column I with that in column II. Column-I Column-II (a) Copper (p) Non-metal (b) Fluorine (q) Transition metal (c) Silicon (r) Lanthanoid (d) Cerium (s) Metalloid Identify the correct match :

(a)-(q), (b)-(p), (c)-(s), (d)-(r)

(a)-(q), (b)-(s), (c)-(p), (d)-(r)

(a)-(s), (b)-(r), (c)-(p), (d)-(q)

(a)-(p), (b)-(q), (c)-(r), (d)-(s)

EASY

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Which liquid metal is used in high temperature thermometers ?

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Important Questions on Classification of Elements and Periodicity in Properties

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The electronic configurations of Eu (Atomic no.

63

), Gd (Atomic no.

64

) and Tb (Atomic no.

65

) are:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The

71^{st}

electron of an element

X

with an atomic number of

71

enters the orbital:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Among the given configurations, identify the element which doesn't belong to the same family as the others?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Which of the following species is iso-electronic with

Cr ?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Which of the following does not exist?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The electron configuration of

F e^{3 +}

is (atomic number of

F e = 26

)

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

To which group of the periodic table does an element having electronic configuration

[Ar] 3 d^{5} 4 s^{2}

belong?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The outermost shell electronic configuration of an element 'A' (symbol given is not real) is $3 s^{2} 3 p^{4}$ .

Which is the block to which the element belongs?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Scandium is a transition element. But zinc is not. Why?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Which among the following elements is a metalloid?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Match the element in column I with that in column II.

	Column-I		Column-II
(a)	Copper	(p)	Non-metal
(b)	Fluorine	(q)	Transition metal
(c)	Silicon	(r)	Lanthanoid
(d)	Cerium	(s)	Metalloid

Identify the correct match :

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The electronic configurations of bivalent europium and trivalent cerium are:
(atomic number:

X e = 54

C e = 58

E u = 63)

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The outermost shell electronic configuration of an element 'A' (symbol given is not real) is $3 s^{2} 3 p^{4}$ .

Find the group number of the element.

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The element with outer electronic configuration

(n - 1) d^{2} n s^{2}

, where

n = 4

, would belong to

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The outermost shell electronic configuration of an element 'A' (symbol given is not real) is $3 s^{2} 3 p^{4}$ .

To which period of the periodic table does this element belong to?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

To which group of the long periodic table do the halogen elements belong?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

Zn, Cd

and

Hg

metals are not considered as transition metals. Give reason.

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

An element of atomic number

118

would be a/an __________

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The set that contains atomic numbers of only transition elements, is :

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Classification of Elements: s, p, d and f-Blocks

The element

Z = 114

has been discovered recently. It will belong to which of the following family/group and electronic configuration?

Which liquid metal is used in high temperature thermometers ?

Important Questions on Classification of Elements and Periodicity in Properties

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