Chemistry

Kalzium – periodic table and chemistry reference

Kalzium is a chemistry reference and educational application developed by the KDE community. It combines an interactive periodic table with tools for investigating chemical properties, examining isotopes, performing calculations, and visualising molecules. Its range of functionality makes it suitable for students learning fundamental chemistry concepts as well as anyone needing convenient access to element data.

The periodic table provides several ways to examine relationships between the elements. Different colour schemes emphasise chemical families, blocks, and other classifications, while visualisations help illustrate variations in physical and chemical properties. Kalzium also lets users investigate how knowledge of the elements developed over time and how changes in temperature affect their physical states.

Beyond the periodic table, Kalzium includes tools for studying molecular structures and performing chemical calculations. These extend the application beyond a simple reference table, allowing users to investigate molecular masses, solve chemical equations, and explore three-dimensional representations of molecules. The combination of reference information and interactive tools provides a useful learning environment for chemistry.

This is free and open source software.

Key Features

  • Browse the periodic table using different colour schemes for element groups, blocks, and families.
  • Examine atomic properties including mass, radius, electronegativity, electron affinity, electron configuration, and ionisation energy.
  • Plot property data across a range of elements to compare characteristics and identify trends.
  • View isotope information for individual elements.
  • Explore the spectral lines associated with chemical elements.
  • Use a timeline to display the elements known at different points in history.
  • Simulate temperature changes to examine the physical states of elements.
  • Calculate molecular weights from chemical formulae.
  • Solve chemical equations using the integrated equation solver.
  • Examine and edit three-dimensional molecular structures.
  • Access chemical hazard information through risk and safety statements.

Website: apps.kde.org/kalzium
Support:
Developer: Etienne Rebetez, Carsten Niehaus, Pino Toscano, Martin Pfeiffer, Chris Luetchford, Thomas Nagy
License: GNU General Public License v2.0

Kalzium

Kalzium is written in C++. Learn C++ with our recommended free books and free tutorials.


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