Classic Quiz

Atomic Structure & Classification Chemistry Quiz

Published on 15 Apr 2020  |  Last Updated 15 Apr 2020

by Nitroquiz Official

Chemistry starts with atoms, their structure, bonding, classification, arrangements, and properties. We study elements that make up this whole world, their properties, how they combine to form new materials and things, how they interact with one another and so much more.

This short quiz is just an introduction to chemistry basics, the questions range from atomic structure, atomic properties, periodic classification of elements and some more related topics. These questions are mostly conceptual so take the quiz and test your chemistry knowledge.


1. Who is known as the father of modern chemistry?

A. Antoine Lavoisier
B. Dmitri Mendeleev
C. Marie Curie
D. Albert Einstein

2. Who first proposed that matter is made up small indivisible particles?

A. John Dalton
B. Neils Bohr
C. Maharsi Kanada
D. Democritus

3. The smallest units of matter that have the properties of an individual element are known as?

A. Bricks
B. Atoms
C. Grains
D. Strings

4. The purest forms of matter are called?

A. Molecule
B. Components
C. Dark Matter
D. Elements

5. Which of the following is not a subatomic particle?

A. Electron
B. Proton
C. Neutron
D. Molecule

6. Who was the first person to discover the elementary particle called 'Electron' during a discharge tube experiment?

A. Ernest Rutherford
B. John Dalton
C. Neils Bohr
D. JJ Thomson

7. Which of the following famous experiments verified that the mass of an atom is mostly concentrated at the center?

A. Discharge Tube Experiment
B. Double Slit Experiment
C. Alpha Particle Scattering Experiment
D. Millikan's Oil Drop Experiment

8. Which of the following physicist did the famous, Alpha particle scattering experiment with a gold foil?

A. Ernest Rutherford
B. Marie Curie
C. John Dalton
D. Linus Pauling

9. Which of the following atomic models did Rutherford propose?

A. Plum Pudding Model
B. Billiard Ball Model
C. Planetary Model of the atom
D. Cubical Atom Model

10. Which of the following atomic models is most successful in explaining the atomic structure?

A. Bohr model of the atom
B. Rutherford model of the atom
C. Thomson model of the atom
D. Quantum Mechanical model of the atom

11. Which subatomic particle is negatively charged?

A. Protons
B. Neutrons
C. Electrons
D. Positrons

12. Which of the following subatomic particles are positively charged?

A. Neutrons
B. Protons
C. Electrons
D. Bosons

13. An atom with exactly one proton and one electron is also known as?

A. Hydrogen Atom
B. Helium atom
C. Empty atom
D. Massless atom

14. Same elements with different mass numbers are known as?

A. Isomers
B. Isobars
C. Isotopes
D. Isotones

15. Two different elements with the same mass numbers are known as?

A. Isomers
B. Isotopes
C. Isobars
D. Isotones

16. Any of two or more species of atoms or nuclei that have the same number of neutrons are known as?

A. Isomers
B. Isotones
C. Isotopes
D. Isobars

17. Atoms and ions that have the same electron configuration are known as?

A. Isomers
B. Isobars
C. Isotones
D. Isoelectronic

18. The tendency of an atom to attract a shared pair of electrons (or electron density) towards itself is known as?

A. Electroplating
B. Electron affinity
C. Electron Repulsion
D. Electronegativity

19. Which of the following atomic properties have been used to classify elements in the modern periodic table?

A. Atomic Mass
B. Atomic Radius
C. Atomic Number
D. Atomic Shape

20. The atomic number in an atom exhibit the number of which sub-atomic particle?

A. Proton
B. Neutron
C. Electron
D. Boson

21. The region in space around the nucleus of an atom where the probability of finding an electron is the greatest is known as?

A. Atomic area
B. Atomic range
C. Atomic Orbital
D. Atomic Space

22. All the elements in the periodic table are categorized in?

A. Rows and Columns
B. Stacks and Queues
C. Groups and Periods
D. Blocks and Tiles

23. How many groups and periods are there in a periodic table?

A. 7 Groups and 18 Periods
B. 10 Groups and 5 Periods
C. 10 Periods and 5 Groups
D. 18 Groups and 7 Periods

24. Which famous chemist and inventor formulated the periodic law and laid out the modern periodic table of elements?

A. Gregor Mendel
B. John Dalton
C. Dmitri Mendeleev
D. John Newlands

25. The highest number of blocks in the periodic table are occupied by?

A. Metals
B. Non-Metals
C. Metalloids
D. All of these

26. An electrically neutral group of two or more atoms held together by chemical bonds are known as?

A. Molecules
B. Strong atoms
C. Non-Metals
D. Metalloids

27. The chemically stable gases that make up the group 18 of the periodic table are known as?

A. Explosives
B. Lanthanides
C. Noble Gases
D. Alkalis

28. An element 'X' is electrically conductive, hard, lustrous, malleable and ductile, which of the following it could be?

A. Metalloid
B. Non-Metal
C. Metal
D. All of these

29. The amount of energy absorbed when an electron is added to an atom is known as?

A. Electron Denisty
B. Electron affinity
C. Electronegativity
D. Ionization Energy

30. The elements of the periodic table with properties somewhat similar to that of metals and non-metals both are known as?

A. Un-metals
B. Non-metals
C. Metalloids
D. None of these

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