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.

Radium (Ra)

Atomic Number	88
Atomic Mass	226 u
Category	Alkaline earth metal
Electron Config	[Rn] 7s²
Appearance	silvery white metallic
Density (STP)	5000 g/L
Melting Point	1233 K
Boiling Point	2010 K
Electronegativity	0.9 (Pauling)
Ionization Energy	509.3 kJ/mol
Atomic Radius	215 pm
Crystal Structure	Body-centered Cubic
Discovered By	Pierre Curie (1898)

Brief Introduction

Radium (Ra) is a highly radioactive alkaline earth metal that is silvery-white in appearance and glows in the dark. It is extremely rare and unstable, with no stable isotopes. Key details about Radium (Ra) are as follows:

Uses: Historically used in luminous paints (watch dials, instrument panels) due to its radioactivity-induced glow. Also used in early cancer treatment (radiotherapy). Modern uses are extremely limited due to radioactivity and safer alternatives.

Production/Extraction: Found in trace amounts in uranium ores (pitchblende). Extracted through complex chemical processes. Production is now minimal due to health hazards and availability of safer alternatives.

History: Discovered in 1898 by Marie and Pierre Curie in residues of pitchblende. Named from Latin "radius" (ray) due to its radioactivity. Marie Curie won Nobel Prizes in Physics (1903) and Chemistry (1911) for her work on radioactivity.

Health Effects & Safety: Extremely radiotoxic. Emits alpha, beta, and gamma radiation. Accumulates in bones (chemically similar to calcium), causing severe damage to bone marrow and increasing cancer risk. Exposure led to health problems for early researchers.

Price/Market: Not commercially traded openly due to extreme toxicity and security risks. Available only to licensed facilities for specific scientific/medical applications.

Properties: Radioactive, silvery metallic appearance, glows in the dark due to radioluminescence, highly reactive alkaline earth metal, reacts with water to produce hydrogen gas, melting point around 700°C.

← Francium (Fr) · Actinium (Ac) →

Periodic Table