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Quizzes > Science > Chemistry

Ready to Ace the Periodic Table? Start the Quiz!

Challenge Yourself with This Quiz on the Periodic Table of Elements

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for periodic table quiz on dark blue background

Are you ready to put your element knowledge to the ultimate test? Our free periodic table quiz is designed for science enthusiasts eager to challenge themselves with a fun quiz for periodic table of elements and dive into a quiz on the periodic table of elements that covers symbols, atomic numbers, and group trends. You'll learn to identify element families, understand periodic trends, and recall key chemical symbols with confidence. You'll test periodic table of elements accuracy and speed as you answer engaging questions. Click now on our periodic table quiz and tackle dynamic periodic table questions that sharpen your memory and spark curiosity. Perfect for students, teachers, and lifelong learners using the periodic table for tests - start today and see how many elements you can name!

What is the atomic number of hydrogen?
1
8
6
2
The atomic number of an element equals the number of protons in its nucleus, and hydrogen has exactly one proton. This fundamental property defines hydrogen as the first element in the periodic table. Atomic numbers increase sequentially across the table. source
Which element is represented by the chemical symbol 'He'?
Mercury
Helium
Neon
Hydrogen
The symbol 'He' stands for helium, which is the second element on the periodic table and a noble gas. Symbols are typically derived from the element's English or Latin name. Helium's symbol comes from its name without modification. source
What is the chemical symbol for gold?
Au
AuM
Go
Ag
Gold's symbol 'Au' comes from its Latin name aurum, meaning 'shining dawn.' Many element symbols derive from their Latin names rather than their English ones. The symbol 'Ag' refers to silver, from argentum. source
Which element is represented by the atomic number 6?
Boron
Oxygen
Nitrogen
Carbon
Carbon has atomic number 6 because it has six protons in its nucleus. It is a nonmetal element essential to organic chemistry and life. Oxygen is number 8, nitrogen is 7, and boron is 5. source
Which group in the periodic table contains the noble gases?
Group 1
Group 2
Group 18
Group 17
Noble gases occupy Group 18 (or 0 in older numbering) and are characterized by full valence electron shells, making them very unreactive. Group 17 elements are halogens, group 1 are alkali metals, and group 2 are alkaline earth metals. source
What is the chemical symbol for oxygen?
C
O
N
H
The chemical symbol 'O' stands for oxygen, the element with atomic number 8. Symbols are one- or two-letter abbreviations typically derived from the element's English or Latin names. Hydrogen uses 'H', carbon uses 'C', and nitrogen uses 'N'. source
Which metal is liquid at room temperature?
Cesium
Gallium
Bromine
Mercury
Mercury is the only metal that remains liquid under standard conditions (room temperature and pressure). Bromine is a liquid nonmetal, gallium melts just above room temperature, and cesium is solid at room temperature. source
What is the lightest noble gas?
Krypton
Argon
Helium
Neon
Helium is the lightest noble gas with atomic number 2. Neon, argon, and krypton are heavier noble gases that follow helium in group 18. Helium's low atomic mass makes it the second lightest element overall. source
Which element has the highest electronegativity?
Nitrogen
Oxygen
Chlorine
Fluorine
Fluorine has the highest electronegativity on the Pauling scale at 3.98, making it the most electronegative element. Oxygen and chlorine also have high values but are lower than fluorine. Electronegativity increases across a period and up a group. source
The chemical symbol 'Fe' stands for which element?
Iron
Lead
Copper
Tin
The symbol 'Fe' for iron comes from the Latin name ferrum. Many element symbols derive from their Latin names rather than their English names. Lead is Pb (plumbum), tin is Sn (stannum), and copper is Cu (cuprum). source
The atomic mass unit is defined as exactly one-twelfth the mass of which isotope?
Carbon-12
Hydrogen-1
Oxygen-16
Nitrogen-14
The unified atomic mass unit (u) is defined as one-twelfth the mass of the carbon-12 isotope. This standard provides a consistent scale for atomic masses. Oxygen-16 and nitrogen-14 are common isotopes but not used for this definition. source
The lanthanides are located in which block of the periodic table?
d-block
s-block
f-block
p-block
Lanthanides occupy the f-block (elements 57 through 71) because their electrons fill the 4f orbitals. The s-block includes alkali and alkaline earth metals, the p-block includes post-transition metals and nonmetals, and the d-block includes transition metals. source
Which element has the electron configuration [Ne]3s²3p??
Chlorine
Phosphorus
Argon
Sulfur
Chlorine has atomic number 17, corresponding to the configuration [Ne]3s²3p?. Sulfur has one fewer p electron ([Ne]3s²3p?), and argon has a full shell ([Ne]3s²3p?). Phosphorus is [Ne]3s²3p³. source
Which element is most abundant in Earth's crust by weight?
Aluminum
Silicon
Oxygen
Iron
Oxygen makes up about 46% of Earth's crust by weight, primarily in silicate minerals. Silicon is the second most abundant at about 28%. Aluminum and iron follow at lower percentages. source
Which element is commonly used as a semiconductor in solar cells?
Germanium
Carbon
Silicon
Boron
Silicon is the most widely used semiconductor material in solar cells due to its abundance and favorable electronic properties. Germanium was used early on but is less common today. Carbon and boron have other semiconductor applications but are not standard in photovoltaics. source
What period on the periodic table does potassium (K) belong to?
3
5
2
4
Potassium has atomic number 19 and fills its outermost electrons in the 4th shell, placing it in period 4 of the periodic table. Periods correspond to the highest principal quantum number of an element's electron configuration. source
Which of these elements is classified as a post-transition metal?
Titanium
Chromium
Tin
Nickel
Post-transition metals (also called poor metals) follow the transition metals in the p-block; tin is one of them. Titanium, chromium, and nickel are all d-block transition metals. Post-transition metals have more metallic character than metalloids but are softer than transition metals. source
Which of the following isotopes is stable?
Carbon-14
Carbon-12
Uranium-235
Tritium
Carbon-12 is a stable isotope and the basis for the atomic mass unit. Carbon-14 and tritium (hydrogen-3) are radioactive and undergo beta decay. Uranium-235 is also unstable and used as nuclear fuel. source
Which element was named in honor of Marie Curie?
Einsteinium
Curium
Fermium
Mendelevium
Curium (element 96) was named after Marie and Pierre Curie for their groundbreaking work on radioactivity. Einsteinium honors Albert Einstein, fermium honors Enrico Fermi, and mendelevium honors Dmitri Mendeleev. source
Atomic radius generally increases in which direction across the periodic table?
Down a group and to the left across a period
Down a group and to the right across a period
Up a group and to the right across a period
Up a group and to the left across a period
Atomic radius increases down a group because each period adds a new electron shell, and it increases to the left because elements on the right have a stronger nuclear charge pulling electrons closer. Moving up and to the right decreases atomic size. source
Which element has the highest melting point?
Osmium
Carbon
Tungsten
Molybdenum
Tungsten has the highest melting point of all elements at 3422 °C, making it critical for high-temperature applications. Although carbon resists heat, it sublimates rather than melting at 3550 °C under standard pressure. Osmium and molybdenum melt at lower temperatures. source
Which element's atomic number equals the sum of the atomic numbers of hydrogen and helium?
Helium
Beryllium
Boron
Lithium
Hydrogen has atomic number 1 and helium is 2; their sum is 3, which is the atomic number of lithium. Beryllium is 4 and boron is 5. This fun numeric relationship highlights sequential order in the table. source
Which element has the electron configuration [Kr]4d¹?5s²5p??
Antimony
Tellurium
Iodine
Xenon
Iodine has atomic number 53, matching the configuration [Kr]4d¹?5s²5p?. Xenon (54) adds one more p electron for 5p?, tellurium (52) is 5p?, and antimony (51) is 5p³. source
Which of the following has the highest first ionization energy?
Neon
Oxygen
Helium
Fluorine
Helium has the highest first ionization energy because its two electrons are held very tightly by the small nucleus. Noble gases have high ionization energies, and helium's small size makes it the highest. Neon and fluorine follow behind. source
Which element has the ground-state electron configuration [Xe]4f¹?5d¹?6s²6p¹?
Polonium
Thallium
Bismuth
Lead
The configuration [Xe]4f¹?5d¹?6s²6p¹ corresponds to atomic number 81, which is thallium. Lead (82) would add another 6p electron, bismuth (83) adds two, and polonium (84) completes the p-sublevel. source
Element 117 is in which block and group of the periodic table?
p-block, Group 17
p-block, Group 16
f-block, Group 17
d-block, Group 17
Element 117, tennessine, is a p-block element in Group 17, making it a halogen. The p-block contains groups 13 - 18, and halogens occupy group 17. It is not in the d- or f-block. source
Which element can expand its octet and form six covalent bonds due to available d-orbitals?
Carbon
Oxygen
Sulfur
Nitrogen
Sulfur can expand its valence shell by utilizing 3d orbitals to form species like SF? with six covalent bonds. Carbon, nitrogen, and oxygen cannot use d-orbitals and are limited to an octet (or less for hydrogen). This is a feature of elements in period 3 and below. source
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Study Outcomes

  1. Identify Element Symbols and Atomic Numbers -

    Quickly match element symbols to their correct atomic numbers when tackling questions in the periodic table quiz.

  2. Recall Element Names and Properties -

    Memorize key element names and basic chemical properties to boost your accuracy on quiz for periodic table of elements challenges.

  3. Classify Elements into Groups and Periods -

    Organize elements by their group and period to see patterns in reactivity and atomic structure during the quiz on the periodic table of elements.

  4. Apply Periodic Trends to Predict Behavior -

    Use knowledge of atomic radius, electronegativity, and ionization energy trends to answer test periodic table of elements questions with confidence.

  5. Distinguish Metals, Nonmetals, and Metalloids -

    Differentiate element types based on their position and characteristics on the periodic table for tests, sharpening your chemistry classification skills.

  6. Analyze Quiz Feedback for Improvement -

    Review your quiz performance to pinpoint strengths and weaknesses, helping you develop a targeted study plan for future periodic table quizzes.

Cheat Sheet

  1. Atomic Number and Symbol Mastery -

    You need to link the atomic number to its symbol to correctly identify elements - you'll find this fundamental in our periodic table quiz. According to IUPAC guidelines, the atomic number equals the number of protons in an atom's nucleus. For example, atomic number 6 corresponds to carbon (C), so flashcards can help reinforce this key association.

  2. Periodic Trends: Size and Reactivity -

    The periodic table arranges elements so that atomic radius decreases across a period and increases down a group, helping predict size-related trends. Ionization energy and electronegativity follow opposite patterns, guiding reactivity - this order is confirmed by NIST data. For instance, fluorine (F) has the highest electronegativity in its period, driving strong attraction for electrons.

  3. Groups and Periods Classification -

    Columns, or groups, connect elements with similar valence electron configurations, which dictate chemical behavior - alkali metals in Group 1 (Li, Na, K) are highly reactive, while noble gases in Group 18 (He, Ne, Ar) remain inert. Periods, the horizontal rows, mark principal energy levels, so period 3 elements like sodium (Na) start filling the 3s orbital. Recognizing these patterns can boost your accuracy in the periodic table quiz.

  4. Electron Configurations and Block Identification -

    Understanding s, p, d, and f blocks clarifies why certain elements share properties - s-block elements like magnesium (Mg, [Ne]3s2) are strong reducing agents, while d-block transition metals often form colorful complexes. According to the Royal Society of Chemistry, writing out electron configurations (e.g., Fe: [Ar]4s2 3d6) anchors block positions in memory. Practice this regularly to see patterns in reactivity and bonding.

  5. Mnemonic Techniques for Element Sequences -

    Mnemonic devices turn abstract sequences into memorable phrases - try "Happy Harry Hates Being Bothered" for H, He, Li, Be, B, C in period 2. Educational research from Cambridge University shows mnemonics enhance long-term recall, making it easier to tackle the periodic table quiz. Craft your own phrase for each period or group to speed up memorization.

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