Periodic Classification of Elements: MCQ Test (25 questions)

Question 1 of 25

The elements are arranged in the modern periodic table

Ain decreasing atomic weight
BIncreasing atomic weight
CIncreasing atomic volume
DIncreasing atomic number

Question 2 of 25

Mendeleev could not assign correct position to it in his periodic table.

Anitrogen
BCarbon
Coxygen
Dhydrogen

Question 3 of 25

Which scientist arranged the periodic table of elements in increasing order of atomic masses?

ARobert Boyle
BWilliam Ramsay
CHenry Moseley
DDmitri Mendeleev

Question 4 of 25

Which of the following scientists discovered the element Polonium?

AF.W. Austen
BMarie Curie
CFrederick Jolliet
DIrene Curie

Question 5 of 25

The lightest metal is

AMagnesium
Baluminum
CPlatinum
DLithium

Question 6 of 25

Who first classified the elements?

ALothar Meyer
BNewlands
CMendeleev
DDobereiner

Question 7 of 25

Two elements in the periodic table are named after France, one of them is francium. What is the other element?

AFluorine
BChromium
CFermium
DGallium

Question 8 of 25

Who gave the symbol of the element?

AJohn Dalton
BLavoisier
CVirgilius
DRobert Boyle

Question 9 of 25

The most abundant element on Earth is

Aoxygen
Bsilicon
Caluminum
Dpenis

Question 10 of 25

What is the atomic number of the element 'Einsteinium'?

A98
B100
C99
D101

Question 11 of 25

From the following pairs of elements, choose the correct pair which are liquids at normal temperature and standard pressure?

ABromine and Fluorine
BMercury and Rubidium
CBromine and Thallium
DBromine and Mercury

Question 12 of 25

Which of the following is a fundamental property of an element?

Aatomic mass
Bmolar mass
Catomic number
Datomic density

Question 13 of 25

97.2% of the Earth's crust is made up of how many elements?

A5
B8
C11
D19

Question 14 of 25

The total number of groups in the modern periodic table is

A7
B9
C16
D18

Question 15 of 25

In the year 1817, ......... tried to arrange elements with similar properties into groups.

AEmmy Noyther
BHenry Moseley
CDöbernier
DMendeleev

Question 16 of 25

Which scientist first created the 'Periodic Table'?

AMoseley
BMedallion
CDalton
DRutherford

Question 17 of 25

Consider the following statement - "The atomic number of an element is a more fundamental property than its atomic mass." Which of the following scientists made the above statement?

AMendeleev
BHenry Moseley
CThomson
DRutherford

Question 18 of 25

If the elements are listed in order of increasing atomic weights, every eighth element will have properties similar to those of the element before it. This rule is:

AMendeleev's periodic law
BDobereiner's law of triplets
CDuma attempt
DNewlands' law of octaves

Question 19 of 25

Which of the following sets of elements have the same valency?

ANa, Mg, Ca
BNa, Mg, Al
CMg, Ca, K
DMg, Ca, Ba

Question 20 of 25

On which one of the following is the modern periodic table based?

Aatomic volume
Batomic number
Catomic mass
Datomic size

Question 21 of 25

The characteristic of transition elements is

AIncomplete d-wintle
BIncomplete f orbital
Cincomplete p-orbital
DOrbital(s) incomplete

Question 22 of 25

The horizontal columns of the periodic table are called

Aperiodicity
BSocial class
CMetal
Dnonmetal

Question 23 of 25

Which element comes before carbon in the modern periodic table

ALithium
BMagnesium
CBoron
DBeryllium

Question 24 of 25

The total number of periods in the modern periodic table is

A5
B7
C9
D16

Question 25 of 25

The physical and chemical properties of elements are periodic functions of their atomic weights. Who formulated this law?

AMendeleev
BMoseley
CRutherford
DNudes