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.

Strontium (Sr)

Atomic Number	38
Atomic Mass	87.621 u
Category	Alkaline earth metal
Electron Config	[Kr] 5s²
Appearance	silvery white metallic
Density (STP)	2630 g/L
Melting Point	1050 K
Boiling Point	1650 K
Electronegativity	0.95 (Pauling)
Ionization Energy	549.5 kJ/mol
Atomic Radius	200 pm
Crystal Structure	Face-centered Cubic
Discovered By	William Cruickshank (chemist) (1790)

Brief Introduction

Strontium (Sr) is a soft, silvery-white alkaline earth metal that is highly reactive and never found free in nature. It burns in air and reacts vigorously with water. Key details about Strontium (Sr) are as follows:

Uses: Used in fireworks and flares (strontium compounds produce brilliant red color), ferrite magnets for small motors, zinc refining (removes lead impurities), glass for cathode ray tubes (now declining), and in certain medical applications (strontium ranelate for osteoporosis). Radioactive Sr-90 is a dangerous nuclear fission product.

Production/Extraction: Extracted from celestine (strontium sulfate) and strontianite (strontium carbonate) ores through reduction. Major sources include Spain, Mexico, and China. Production has declined with reduced demand from CRT televisions.

History: Discovered in 1790 by Adair Crawford and William Cruickshank in a mineral from Strontian, Scotland. First isolated by Humphry Davy in 1808 through electrolysis. Named after Strontian, its discovery location.

Health Effects & Safety: Metallic strontium reacts with water and must be stored under oil. Stable strontium is relatively non-toxic and chemically similar to calcium (can substitute in bones). Radioactive strontium-90 (from nuclear fallout) is extremely hazardous as it mimics calcium, accumulating in bones and causing cancer.

Price/Market: Moderate pricing; demand has decreased with decline of CRT technology. Fireworks and specialized applications maintain steady demand. Concerns about Sr-90 contamination from nuclear accidents affect perception.

Properties: Soft and silvery, burns in air with crimson red flame (basis for red fireworks), reacts vigorously with water, similar chemical properties to calcium and barium, exhibits +2 oxidation state exclusively, and metallic strontium must be protected from air and moisture.

← Rubidium (Rb) · Yttrium (Y) →

Periodic Table