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.

Holmium (Ho)

Atomic Number	67
Atomic Mass	164.930332 u
Category	Lanthanide
Electron Config	[Xe] 4f¹¹ 6s²
Appearance	silvery white
Density (STP)	8795 g/L
Melting Point	1734 K
Boiling Point	2873 K
Electronegativity	1.23 (Pauling)
Ionization Energy	581 kJ/mol
Atomic Radius	175 pm
Crystal Structure	Simple Hexagonal
Discovered By	Marc Delafontaine (1878)

Brief Introduction

Holmium (Ho) is a soft, silvery rare earth metal with the highest magnetic moment of any naturally occurring element. It has a bright silvery luster and is relatively stable in dry air. Key details about Holmium (Ho) are as follows:

Uses: Used in the strongest artificially generated magnetic fields, lasers (holmium-YAG laser for medical and dental applications), nuclear reactor control rods, and as a yellow or red colorant for cubic zirconia and glass.

Production/Extraction: Extracted from monazite and bastnäsite ores. One of the rarer rare earth elements. China is the primary producer.

History: Discovered in 1878 by Marc Delafontaine and Jacques-Louis Soret in Switzerland through spectroscopic analysis, and independently by Per Teodor Cleve in Sweden. Named after Holmia, the Latin name for Stockholm.

Health Effects & Safety: Low toxicity with limited data. No known biological role. Holmium compounds should be handled with standard precautions.

Price/Market: Expensive due to low abundance and limited applications. Niche demand from laser and magnetic applications. Supply tied to rare earth production.

Properties: Highest magnetic moment of any naturally occurring element, soft and malleable, exhibits +3 oxidation state, paramagnetic, and has distinctive absorption spectrum used in spectrophotometer calibration.

← Dysprosium (Dy) · Erbium (Er) →

Periodic Table