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.

Krypton (Kr)

Atomic Number	36
Atomic Mass	83.7982 u
Category	Noble gas
Electron Config	[Ar] 3d¹⁰ 4s² 4p⁶
Appearance	colorless gas, exhibiting a whitish glow in a high electric field
Density (STP)	3.75 g/L
Melting Point	115.78 K
Boiling Point	119.93 K
Electronegativity	3 (Pauling)
Ionization Energy	1350.8 kJ/mol
Atomic Radius	88 pm
Crystal Structure	Face-centered Cubic
Discovered By	William Ramsay (1898)

Brief Introduction

Krypton (Kr) is a colorless, odorless, tasteless noble gas that is chemically inert under normal conditions. It is present in trace amounts in Earth's atmosphere and emits a bright white light when electrically excited. Key details about Krypton (Kr) are as follows:

Uses: Used in high-performance lighting (krypton flash lamps for photography, airport runway lights), energy-efficient windows (krypton-filled double glazing for insulation), lasers (krypton ion lasers), and in some specialized medical applications. Radioactive Kr-85 is used in leak detection.

Production/Extraction: Obtained through fractional distillation of liquid air. Krypton is very rare in the atmosphere (about 1 ppm), making it more expensive than many other noble gases. Production is energy-intensive.

History: Discovered in 1898 by William Ramsay and Morris Travers in London through fractional distillation of liquid air, shortly after discovering neon. Named from Greek "kryptos" meaning "hidden" due to its initial elusiveness.

Health Effects & Safety: Chemically inert and non-toxic. Can cause asphyxiation by displacing oxygen in confined spaces. Kr-85 (radioactive isotope from nuclear fission) poses radiation hazards. No biological role. Krypton-oxygen mixture has anesthetic properties.

Price/Market: Expensive due to atmospheric rarity (rarer than xenon in commercial production). Demand from specialized lighting and window industries. Production often linked to xenon extraction.

Properties: Colorless and odorless, complete outer electron shell makes it extremely unreactive (only a few compounds known under extreme conditions), emits bright white light when excited electrically, denser than air, and characterized by distinctive spectral lines.

← Bromine (Br) · Rubidium (Rb) →

Periodic Table