Understanding Atomic Number and the Periodic Table
Test your knowledge on atomic number, electron configuration, and the arrangement of elements in the periodic table.
Try this quiz
Play through the questions and see your score instantly
Ready to test your knowledge?
13 questions · Quick play · Instant results
Make your own quiz videos
Turn any topic into a polished video quiz — with AI-powered questions, voiceover, and animations. No video editing skills needed.
Unlimited quizzes, free to start
Create as many quizzes as you want. Describe your topic and AI builds the questions, answers, and explanations for you.
Customise everything
Pick from stunning templates, tweak colours and fonts, add your branding, and choose between vertical or landscape formats.
Export-ready videos
Download HD videos optimised for TikTok, YouTube Shorts, Instagram Reels, or full-length YouTube — one click, no editing.
No credit card required
Quiz Questions & Answers
Review every prompt, the correct responses, and helpful context to prep for your own run-through.
Question 1: What does the atomic number represent?
Number of neutrons
Number of protons
Mass of the atom
Number of electrons
Question 2: How are elements arranged in the periodic table?
By atomic mass
By increasing atomic number
By color
By size
Question 3: Can two elements have the same atomic number?
Yes, it's possible
No, each element has a unique atomic number
Only in certain isotopes
Only in compounds
Question 4: What is electron configuration?
The arrangement of electrons in an atom
The number of neutrons
The atomic mass of an element
The number of protons
Question 5: Why is an atom electrically neutral?
Equal number of protons and neutrons
Equal number of protons and electrons
Protons are negatively charged
Electrons do not exist
Question 6: What do groups in the periodic table represent?
Horizontally arranged elements
Elements with similar properties
Elements with different atomic masses
Randomly selected elements
Question 7: What defines the stability of chemical reactions?
The number of neutrons
The atomic number
The atomic mass
The color of the elements
Question 8: How many groups are found in the periodic table?
12
18
20
7
Question 9: What is a common misconception about atomic number?
It can be zero
It equals the number of protons
It can change during reactions
It is the same as atomic mass
Question 10: What are periods in the periodic table?
Vertical columns of elements
Horizontal rows of elements
Randomly organized elements
Elements with the same properties
Question 11: Why is the atomic number important in chemistry?
It determines the mass of the atom
It uniquely identifies an element
It can change during a reaction
It represents the number of electrons
Question 12: How does atomic number relate to protons and electrons?
It equals the number of neutrons
It equals the number of protons, not electrons
It is the same as the number of electrons
It changes when electrons are gained or lost
Question 13: What happens to the atomic number when an atom gains or loses electrons?
It increases
It decreases
It remains the same
It becomes negative