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

Earn 100

The 4f level is successively filled up in

66.67% studentsanswered this correctly

Important Questions on Classification of Elements and Periodicity in Properties

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

For the following Assertion and Reason, the correct option is:
Assertion: For hydrogenation reactions, the catalytic activity increases from Group

5

to Group

11

metals with maximum activity shown by Group

7 - 9

elements.
Reason: The reactants are most strongly adsorbed on group

7 - 9

elements.

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

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 :

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The element

Z = 114

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

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

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

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power 'n' i.e. $v^{n}$ of X-rays emitted is plotted against atomic number $Z$ , the following graph is obtained.

Question Image

The value of 'n' is

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The elements with atomic numbers

101

and

104

belong to, respectively:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The

71^{st}

electron of an element

X

with an atomic number of

71

enters the orbital:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

Which among the following elements is a metalloid?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

Match List - I with List - II

LIST-I (Atomic number)		LIST-II (Block of periodic table)
(A)	$37$	I.	$p$ -block
(B)	$78$	II.	$d$ -block
(C)	$52$	III.	$f$ -block
(D)	$65$	IV.	$s$ -block

Choose the correct answer from the options given below:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The pair of lanthanides with exceptionally high

3^{rd}

ionisation enthalpy than neighbouring elements:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

Consider the following radioactive decays

I. ${}_{92}U {\overset{- α}{⟶}}_{90} Th$ and

II. $_{90} Th \overset{- α}{⟶} {}_{88}{Ra}$

In which case group of parent and daughter elements remains unchanged.

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

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>Periodic Law and the Modern Periodic Table

Which of the following does not exist?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The correct match among the following is

(a) Lithium, Sodium, Potassium (i) Alkaline earth metals
(b) Beryllium, Magnesium, Calcium (ii) Semi-metals
(c) Oxygen, Sulphur, Selenium (iii) Alkali metaIs
(d) Silicon, Germanium, Arsenic (iv) Chalcogens

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

Decrease in ionic size in a period is observed in

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

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>Periodic Law and the Modern Periodic Table

An element of atomic number

118

would be a/an __________

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

Henry Moseley studied characteristic

X

-ray spectra of elements. The graph which represents his observation correctly is
Given

v =

Frequency of X-ray emitted

Z =

Atomic number

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The last element of the

p

- block in

6^{th}

period is represented by the outermost electronic configuration:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Periodic Law and the Modern Periodic Table

The electronic configurations of Eu (Atomic no.

63

), Gd (Atomic no.

64

) and Tb (Atomic no.

65

) are:

The 4f level is successively filled up in

Important Questions on Classification of Elements and Periodicity in Properties

Learn and Prepare for any exam you want !