Periodic Classification of Elements: MCQ Test
25 questions · pick one option for each · submit when you finish to see your score and the correct answers.
Question 1 of 25
Who gave the symbol of the element?
- AJohn Dalton
- BLavoisier
- CVirgilius
- DRobert Boyle
Question 2 of 25
Which element comes before carbon in the modern periodic table
- ALithium
- BMagnesium
- CBoron
- DBeryllium
Question 3 of 25
The total number of periods in the modern periodic table is
- A5
- B7
- C9
- D16
Question 4 of 25
The heaviest metal is-
- Asilver
- BSleep
- CMercury
- DOsmium
Question 5 of 25
The originator of the modern periodic law is
- AMoseley
- BMendeleev
- CAvogad
- DDalton
Question 6 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 7 of 25
The classification of elements in Mendeleev's periodic table is based on
- Aatomic mass
- Batomic number
- Catomic volume
- Datomic density
Question 8 of 25
Who first classified the elements?
- ALothar Meyer
- BNewlands
- CMendeleev
- DDobereiner
Question 9 of 25
The total number of groups in the modern periodic table is
- A7
- B9
- C16
- D18
Question 10 of 25
Who among the following gave the 'Law of Octaves'?
- AMendeleev
- BNewlands
- CLavoisier
- DDobereiner
Question 11 of 25
Which scientist first created the 'Periodic Table'?
- AMoseley
- BMedallion
- CDalton
- DRutherford
Question 12 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 13 of 25
The most abundant metallic element on Earth is-
- AIron
- Baluminum
- Ccalcium
- Dsodium
Question 14 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 15 of 25
The characteristic of transition elements is
- AIncomplete d-wintle
- BIncomplete f orbital
- Cincomplete p-orbital
- DOrbital(s) incomplete
Question 16 of 25
According to Mendeleev, the properties of elements are periodic functions of—
- Aof atomic weight
- Bof atomic volume
- Catomic number of
- Dof atomic density
Question 17 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 18 of 25
Which of the following elements is most electronegative?
- Aoxygen
- BFluorine
- Csodium
- Dchlorine
Question 19 of 25
The vertical columns of the periodic table are called
- Aperiodicity
- BSocial class
- CMetal
- Dnonmetal
Question 20 of 25
97.2% of the Earth's crust is made up of how many elements?
- A5
- B8
- C11
- D19
Question 21 of 25
The long form of the periodic table depends on—
- Aon the size of the atom
- Bon the atomic mass
- Con atomic number
- Don electronegativity
Question 22 of 25
Formulated the 'Law of Triads' related to the classification of elements.
- ALothar Meyer
- BDoverunner
- CMendeleev
- DNewlands
Question 23 of 25
The lightest element is---
- Ahydrogen
- Bhelium
- CLithium
- Dsodium
Question 24 of 25
Which of the following is a fundamental property of an element?
- Aatomic mass
- Bmolar mass
- Catomic number
- Datomic density
Question 25 of 25
In the year 1817, ......... tried to arrange elements with similar properties into groups.
- AEmmy Noyther
- BHenry Moseley
- CDöbernier
- DMendeleev