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Interactive Chemistry Tool · 118 Elements

Interactive Periodic Table
of All 118 Elements

Click any element to explore atomic number, electron configuration, melting point, boiling point, density, and discovery history — all in one free chemistry tool.

⬡ Explore Elements Learn Chemistry →
118
TOTAL ELEMENTS
94
NATURALLY OCCURRING
10
ELEMENT CATEGORIES
7
PERIODS (ROWS)

The Modern Periodic Table

// hover to preview · click to explore full atomic data

Alkali Metal
Alkaline Earth
Transition Metal
Post-Transition
Metalloid
Nonmetal
Halogen
Noble Gas
Lanthanide
Actinide
By The Numbers

Elements at a Glance

The complete atomic landscape of our universe.

118
TOTAL ELEMENTS
94
NATURALLY OCCURRING
38
TRANSITION METALS
7
PERIODS (ROWS)
18
GROUPS (COLUMNS)
10
ELEMENT CATEGORIES
Element Categories

10 Types of Chemical Elements

Each category shares distinct physical and chemical properties.

Chemistry Q&A

Frequently Asked Questions

Everything you need to know about the periodic table and chemical elements.

How many elements are in the periodic table? +
The modern periodic table contains 118 confirmed elements. Of these, 94 occur naturally on Earth, while the remaining 24 are synthetic elements created in nuclear reactors or particle accelerators. The most recently named elements — Nihonium (113), Moscovium (115), Tennessine (117), and Oganesson (118) — received official names from IUPAC in 2016.
What data does each element show? +
Clicking any element reveals its atomic number, symbol, atomic mass, category, state at room temperature, melting point, boiling point, density, electron configuration, group, period, block, and year of discovery. An animated Bohr model atom diagram is also shown for every element.
How are elements organised in the periodic table? +
Elements are arranged in order of increasing atomic number across 7 periods (rows) and 18 groups (columns). Elements in the same group share similar chemical properties because they have the same number of valence electrons. The table is divided into s-block, p-block, d-block, and f-block elements.
What are the 10 categories of elements? +
Elements are classified into 10 categories: alkali metals (Group 1), alkaline earth metals (Group 2), transition metals (Groups 3–12), post-transition metals, metalloids (semiconductors), reactive nonmetals, halogens (Group 17), noble gases (Group 18), lanthanides (rare earths 57–71), and actinides (radioactive 89–103).
What is electron configuration? +
Electron configuration describes the distribution of electrons in an atom's orbitals. Written in notation like [He] 2s² 2p⁶, it shows which energy levels and subshells are occupied. Electron configuration determines an element's chemical behavior, bonding capacity, and position in the periodic table.
Which element has the highest melting point? +
Tungsten (W, atomic number 74) has the highest melting point of all elements at 3422°C (6192°F). This makes it indispensable for high-temperature applications including incandescent light bulb filaments, rocket nozzles, X-ray targets, and cutting tools.
What is the heaviest naturally occurring element? +
Uranium (U, atomic number 92) is the heaviest naturally occurring element with an atomic mass of 238.029 u. It is primarily used as nuclear fuel. Plutonium (Pu, 94) can also be found in trace amounts in nature. Elements above atomic number 94 are entirely synthetic.
How can I memorize the periodic table fast? +
The fastest method is to learn by groups and periods, not by memorizing all 118 elements at once. Start with the first 20 elements using mnemonics, then learn transition metals by their groups. Use this interactive tool to explore each element visually, associate elements with their real-world uses, and use flashcards for regular review.
What are noble gases? +
Noble gases are the 7 elements in Group 18: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og). They are called noble because their outer electron shells are completely full, making them extremely unreactive. Neon and Argon are used in lighting; Helium in balloons and MRI machines.
What are transition metals? +
Transition metals occupy Groups 3–12 (the d-block) and include Iron (Fe), Copper (Cu), Gold (Au), Silver (Ag), Platinum (Pt), and Titanium (Ti). They are characterized by partially filled d-orbitals, high melting points, electrical conductivity, and the ability to form brightly colored compounds. Most structural metals in everyday use are transition metals.

About This Interactive Periodic Table

This free interactive periodic table of elements is one of the most comprehensive chemistry tools available online. It covers all 118 chemical elements — from Hydrogen (H, atomic number 1) to Oganesson (Og, atomic number 118) — with full atomic data accessible in a single click. Each element card displays its atomic number, chemical symbol, element name, and atomic mass. The detail panel reveals electron configuration, melting point, boiling point, density, state at room temperature, discovery year, group, period, and block.

Elements are colour-coded by their 10 categories: alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, nonmetals, halogens, noble gases, lanthanides, and actinides. Use the search box to instantly find any element by name, symbol, or atomic number. Use the filter buttons to highlight a specific category and compare similar elements.

The periodic table was first systematically published by Dmitri Mendeleev in 1869, organizing elements by atomic mass and chemical properties. Today's modern table, ordered by atomic number, is the single most important reference in chemistry, physics, biology, and materials science. Whether you are a student studying for board exams, a teacher preparing chemistry lessons, or a researcher verifying atomic data — this tool is built for you. Created and maintained by Brajniketan Infotech, India.