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.

Praseodymium (Pr)

Atomic Number	59
Atomic Mass	140.907662 u
Category	Lanthanide
Electron Config	[Xe] 4f³ 6s²
Appearance	grayish white
Density (STP)	6640 g/L
Melting Point	1208 K
Boiling Point	3403 K
Electronegativity	1.13 (Pauling)
Ionization Energy	527 kJ/mol
Atomic Radius	185 pm
Crystal Structure	Simple Hexagonal
Discovered By	Carl Auer von Welsbach (1885)

Brief Introduction

Praseodymium (Pr) is a soft, silvery, malleable rare earth metal that develops a green oxide coating when exposed to air. It is used primarily for its magnetic and optical properties. Key details about Praseodymium (Pr) are as follows:

Uses: Used in strong permanent magnets (with neodymium), yellow-green pigments for ceramics and glass, carbon arc lighting for movie projectors, welding goggles (absorbs infrared and yellow light), and in mischmetal for lighter flints.

Production/Extraction: Extracted from monazite and bastnäsite ores alongside other rare earths. China dominates production. Relatively abundant among rare earth elements.

History: Discovered in 1885 by Carl Auer von Welsbach in Austria by separating it from didymium (a mixture of praseodymium and neodymium). Named from Greek "prasios didymos" (green twin).

Health Effects & Safety: Low toxicity with limited data. No known biological role. Praseodymium compounds should be handled with care. Dust may be a fire hazard.

Price/Market: Moderate pricing. Demand driven by magnets and specialty glass applications. Price fluctuates with rare earth market dynamics and Chinese export policies.

Properties: Soft and malleable, forms green oxide coating in air, exhibits +3 oxidation state primarily (also +4), paramagnetic, and compounds are characteristically green or yellow-green.

← Cerium (Ce) · Neodymium (Nd) →

Periodic Table