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.

Astatine (At)

Atomic Number	85
Atomic Mass	210 u
Category	Post-transition metal
Electron Config	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵
Appearance	unknown, probably metallic
Density (STP)	7000 g/L
Melting Point	575 K
Boiling Point	610 K
Electronegativity	2.2 (Pauling)
Ionization Energy	899.003 kJ/mol
Atomic Radius	127 pm
Crystal Structure	Face-centered Cubic (predicted)
Discovered By	Dale R. Corson (1940)

Brief Introduction

Astatine (At) is a radioactive halogen and the rarest naturally occurring element in Earth's crust. It has no stable isotopes. Key details about Astatine (At) are as follows:

Uses: Primarily used in nuclear medicine research (Astatine-211) for targeted alpha-particle therapy to treat cancer. No other commercial applications due to rarity and short half-life.

Production/Extraction: Occurs naturally in minute traces as a decay product of uranium and thorium. Produced synthetically by bombarding bismuth with alpha particles.

History: Synthesized in 1940 by Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè at UC Berkeley. Named from Greek "astatos" (unstable). Naturally occurring astatine was discovered later.

Health Effects & Safety: Highly radioactive and dangerous. Accumulates in the thyroid gland like iodine. Handled only in tracer amounts in specialized laboratories.

Price/Market: Not commercially available. Produced on-demand in particle accelerators for research and medical trials.

Properties: Highly radioactive, short half-life (longest is 8.1 hours), likely a black solid with metallic properties, exhibits halogen-like chemical behavior but with more metallic character than iodine.

← Polonium (Po) · Radon (Rn) →

Periodic Table