Interactive Periodic Table of Elements
Explore all 118 chemical elements by atomic number, group, period, family and block. Compare periodic trends, property heatmaps and states of matter across temperature.
What am I seeing?
The tile color is a teaching layer. In family mode, color identifies chemical family. In property mode, color shows where a value sits within the current 118-element range. Grey means the dataset does not contain a defensible value for that field.
What does this temperature path mean?
This is an approximately standard-pressure teaching path, not a complete phase diagram. Some elements have pressure-dependent, solid-to-solid or predicted transitions that need element-specific explanation.
Where on Earth?
Select an element to connect periodic-table chemistry with the real world. 118 completed guides now use evidence-aware geography. Each map mode states whether it represents global occurrence, research geography, a source-year production layer or a conceptual occurrence layer.
Periodic table of elements: 118 elements, 18 groups and 7 periods
The periodic table arranges the 118 known chemical elements by atomic number and recurring chemical properties. Use the interactive table above to explore element families, groups, periods, s/p/d/f blocks, electron-related trends and how physical state changes with temperature.
Groups, periods and families
Explore Groups 1–18, Periods 1–7, alkali metals, alkaline-earth metals, transition metals, metalloids, halogens, noble gases, lanthanides and actinides.
Periodic trends and properties
Color the table by electronegativity, atomic radius, ionization energy, density, melting point, boiling point or atomic number and use the changing legend to interpret the scale.
States of matter by temperature
Move the 0–6000 K temperature control to see which elements are predicted to be solid, liquid, gas or unknown at approximately standard pressure.
118 individual element guides
Every element now has its own searchable guide with properties, electron configuration, atomic structure, isotopes, uses, history, geography, comparisons, interactive learning tools and a student datasheet.
Choose the path that matches your question
118 completed, source-reviewed element guides
Follow the question, not just the element
What is the difference between protons, neutrons and electrons?
Separate element identity, isotope identity and charge by assigning each subatomic particle the right role.
Explore the answer →What is mass number?
Learn why mass number is the integer proton-plus-neutron count for one isotope and not the decimal atomic-weight value on the periodic table.
Explore the answer →What are valence electrons?
Connect the electrons involved in ordinary chemistry to periodic groups, while keeping transition-metal exceptions visible.
Explore the answer →What are groups, periods and blocks?
Use the periodic table as a coordinate system for recurring electron structure rather than memorizing rows and columns as labels.
Explore the answer →What is electronegativity?
Understand electronegativity as a relative attraction-for-bonding-electrons concept, not an ionization energy.
Explore the answer →What is ionization energy?
Learn what it means to remove an electron from a gaseous atom and why real trend exceptions reveal electron structure.
Explore the answer →Magnesium (Mg)
Explore magnesium’s atomic number, electron configuration, valence electrons, properties, isotopes, uses, occurrence, temperature behavior, 3D visual lab and student PDF.
What does the periodic table show?
It organizes chemical elements by increasing atomic number while grouping elements with related electronic structures and chemical behavior into recurring patterns.
What are groups and periods?
Groups are the 18 vertical columns. Periods are the 7 horizontal rows. Elements in the same group often share important chemical similarities.
What can I compare on this interactive periodic table?
You can compare families, blocks, electronegativity, atomic radius, melting and boiling points, density, ionization energy, atomic number and state of matter at a selected temperature.
Found an error, something unclear, or a missing topic?
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