Kalzium

Periodic Table of Elements

Science

Actively maintained

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About

Kalzium is a program that shows you the Periodic Table of Elements. You can use Kalzium to search for information about the elements or to learn facts about the periodic table. It provides an overview of the important data (like melting points, electron affinity, electron negativity, electron configuration, radii, mass, ionisation energy), an isotope table, and different colored views of the periodic table (separation of the different blocks, year simulator, temperature simulator). It contains tools to visualize the spectral lines of each element, a molecular weight calculator, a 3D molecule editor, and an equation solver for stoichiometric problems.

Additional information

Project

Developer: KDE
License: GPL-2.0+ (free software)What this license lets you do
Homepage: apps.kde.org/kalzium
From the project: Report a bug Donate Documentation Contact
Latest release: October 8, 2026 (10 days ago)Actively maintained · 4+ releases in the last year
Release history: Last 4 releases
26.04.3July 2, 2026
26.04.2June 4, 2026
26.04.1May 7, 2026
26.04.0April 16, 2026
Languages: 51 languages

Install

Available via: Flatpak · Snap (2) · Arch Linux (2) · Debian · Ubuntu · Fedora · openSUSE · Alpine Linux · Slackware · Solus · Gentoo · Nixpkgs
All 14 packagings
Flathub (Flatpak), Snap Store, Snap Store (Beta build), AUR (Git build), Debian, Ubuntu, Fedora, Arch Linux, Nixpkgs, openSUSE, Alpine Linux, Slackware, Solus, Gentoo (Candidate build)

About this data

Sources: 19 independent sources agree
Catalog data as of: October 12, 2026

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How each source lists it (14)

Source	Name	Version	Built by	License	Description
Flathub (Flatpak)	Kalzium	26.04.3	—	GPL-2.0+	Periodic Table of Elements
Snap Store	kalzium	26.04.3	—	GPL-2.0+	KDE Periodic Table of Elements
Snap Store (Beta build)	kalzium	26.04.3	—	GPL-2.0+	KDE Periodic Table of Elements
AUR (Git build)	kalzium-git	24.04.70_r4618.gb58a7959-2	—	GPL-2.0-or-later AND LGPL-2.0-or-later	Periodic Table of Elements
Debian	kalzium	4:25.04.0-1	Distribution build	—	periodic table and chemistry tools
Ubuntu	kalzium	4:25.12.3-0ubuntu1	Distribution build	—	periodic table and chemistry tools
Fedora	kalzium	26.08.1	Distribution build	GPL-2.0-or-later	Periodic Table of Elements
Arch Linux	kalzium	26.08.2-1	Distribution build	GPL-2.0-or-later AND LGPL-2.0-or-later	Periodic Table of Elements
Nixpkgs	kalzium	26.08.2	Distribution build	BSD-3-Clause AND CC0-1.0 AND GPL-2.0-or-later AND LGPL-2.0-or-later AND LGPL-2.1-or-later	Periodic Table of Elements
openSUSE	kalzium	26.08.2	Distribution build	GPL-2.0-or-later	Periodic Table of Elements
Alpine Linux	kalzium	26.04.2-r0	Distribution build	GPL-2.0-or-later AND LGPL-2.0-or-later AND GFDL-1.2-only	Periodic Table of Elements
Slackware	kalzium	26.08.2-1	Distribution build	—	kalzium (periodic table of the elements)
Solus	kalzium	25.08.2	Distribution build	GPL-2.0-or-later	Periodic Table of Elements
Gentoo (Candidate build)	kalzium	26.08.2	Distribution build	GPL-2.0-only	Periodic table of the elements