Interactive Periodic Table
Explore all 118 elements with atomic masses and categories.
Click any element to open a detailed popup with characteristics, shell model, common uses, and a real sample image.
How to Use the Interactive Periodic Table
1
Browse or filter. Scan the full 118-element grid, or filter by category to isolate alkali metals, halogens, transition metals, and the other families.
2
Open an element. Click any tile to see atomic number, symbol, standard atomic mass, electron shells, block, phase, and electronegativity.
3
Use the data. Copy atomic masses into stoichiometry problems, or compare elements across a period and down a group to see the trends.
What is the Interactive Periodic Table?
The interactive periodic table covers all 118 elements with atomic number, symbol, name, atomic mass, and category classification from alkali metals through noble gases. Click any element for a detail view, or filter by category to study element families.
Periodic trends such as atomic radius, ionization energy, and electronegativity are easiest to learn visually. Category color-coding and the filterable grid make family patterns obvious in a way a printed table cannot match.
Common Uses
- Look up atomic masses for stoichiometry
- Study element categories and families
- Check element properties before an exam
- Explore periodic trends visually
How to Solve It by Hand
Manual calculation is still important: identify the known variables, convert units before substitution, apply the equation, and check whether the result is chemically reasonable. The most common mistakes are inconsistent units, constants rounded too early, and skipping the interpretation step.
Practice Prompt
Try changing the default values and ask the lower-right chemistry chat why the result increased or decreased. That turns the calculator from a number machine into a study loop.
118 elements are officially named and recognised by IUPAC, running from hydrogen (atomic number 1) to oganesson (118). Everything past uranium (92) is synthetic.
Elements are ordered by increasing atomic number and arranged so that columns (groups) share a valence electron configuration and rows (periods) correspond to the outermost occupied shell. That is why elements in the same group behave similarly.
Atomic radius decreases across a period and increases down a group. Ionisation energy and electronegativity do the opposite: they increase across a period and decrease down a group, because nuclear charge rises while shielding stays roughly constant across a row.
The colour coding groups elements into alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, nonmetals, halogens, noble gases, lanthanides, and actinides. Each family shares characteristic bonding and reactivity patterns.
Click any element to see its standard atomic mass in g/mol along with its electron configuration, phase at room temperature, and electronegativity. Those masses feed the molecular weight calculator on this site.