What is the Interactive Periodic Table?

The Interactive Periodic Table is a free, modern web application that displays all 118 elements with detailed properties, 3D Bohr model visualizations, crystal structure renderings, and text-to-speech pronunciation. It works on desktop, tablet, and mobile devices.

What information is available for each element?

Each element page includes atomic number, atomic mass, electron configuration, physical properties (density, melting and boiling points, state of matter), chemical properties (electronegativity, ionization energy, electron affinity), an interactive 3D Bohr model, 3D crystal structure, and an AI-generated educational summary.

Can I use this periodic table for teaching?

Yes. The Interactive Periodic Table includes a full-screen mode designed for projectors and classroom presentations. All content is educational and completely free to use without registration.

Does it work on mobile devices?

Yes. The web app is fully responsive and also available as native iOS and Android apps that can be downloaded from the app stores.

What are the 3D visualizations?

Each element features an interactive 3D Bohr model showing electron shells orbiting the nucleus, and a 3D crystal structure rendering showing the element's atomic arrangement. Both are powered by Three.js and React Three Fiber.

Is this periodic table free?

Yes, the Interactive Periodic Table is completely free with no registration, no ads, and no data collection required.

How many elements are included?

All 118 confirmed elements from Hydrogen (H, atomic number 1) through Oganesson (Og, atomic number 118) are included with full data and visualizations.

Can I hear how element names are pronounced?

Yes. The text-to-speech feature allows you to hear the correct pronunciation of any element name. This works on both the web version and native mobile apps.

Manganese (Mn)

Atomic Number	25
Atomic Mass	54.9380443 u
Category	Transition metal
Electron Config	[Ar] 3d⁵ 4s²
Appearance	silvery metallic
Density (STP)	7470 g/L
Melting Point	1519 K
Boiling Point	2334 K
Electronegativity	1.55 (Pauling)
Ionization Energy	717.3 kJ/mol
Atomic Radius	140 pm
Crystal Structure	Body-centered Cubic
Discovered By	Torbern Olof Bergman (1774)

Brief Introduction

Manganese (Mn) is a hard, brittle, silvery-gray transition metal that is essential for steel production and has important biochemical roles. It is the twelfth most abundant element in Earth's crust. Key details about Manganese (Mn) are as follows:

Uses: Primarily used in steel production (deoxidizer and alloying element; virtually all steel contains manganese), aluminum alloys, dry cell batteries (manganese dioxide), fertilizers, pigments (permanganate, manganese violet), and as a catalyst in chemical processes.

Production/Extraction: Extracted from pyrolusite and other manganese oxide ores through reduction with aluminum or carbon. Major producers include South Africa, Australia, China, and Gabon. Deep-sea manganese nodules represent a vast untapped resource.

History: Known in antiquity as pyrolusite (used to decolorize glass and for glass coloring). Isolated as a metal by Johan Gottlieb Gahn in 1774 in Sweden. Named from Latin "magnes" (magnet), though manganese itself is not strongly magnetic.

Health Effects & Safety: Essential trace element for humans (required for bone formation, metabolism, and antioxidant function). Both deficiency and excess are harmful—manganese toxicity (manganism) causes neurological symptoms similar to Parkinson's disease. Occupational exposure in mining and welding is a concern.

Price/Market: Price tied to steel industry demand. Electrolytic manganese dioxide (EMD) for batteries commands premium prices. Growing interest in manganese for lithium-ion battery cathodes.

Properties: Exhibits multiple oxidation states (+2 to +7), brittle and hard to melt, reacts slowly with water, oxidizes easily in air, paramagnetic, and forms colored compounds in various oxidation states.

← Chromium (Cr) · Iron (Fe) →

Periodic Table