Hello,

Is there a software to know the density of elements (periodic table) ?

gperiodic for instance, likely.

Eg. Uranium has a very high density of 19.07 g/cm3,

Kind regards

See Wikipedia.

gElemental is a GTK+ periodic table viewer that provides detailed information
about chemical elements.
It features a table view which allows the elements to be coloured thematically
by several properties, a sortable list view and an element properties
dialog, displaying a variety of information, including historical,
thermodynamic, electrochemical, and crystallographic properties.

GPeriodic is a small X/GTK+-based program which allows you to
browse through a periodic table of chemical elements, and view
somewhat detailed information on each of the elements.
118 elements are currently listed.

Kalzium is a full-featured chemistry application, including a
Periodic Table of Elements, chemical reference, chemical equation solver, and
3D molecule viewer.
This package is part of the KDE education module.

first hit:
https://askubuntu.com/questions/6930...periodic-table

cool... cooool, but density is missing? kinda?

https://i.postimg.cc/Nf4Tr4Bm/Screen...1-13-59-43.png

Most elements have several forms. Most discussion of density would have to start with a discussion of the forms and conditions.

It has been a very long time since high school chemistry... But programs like these have been around for almost as long.
I realise some may be informational and some more complex... I haven't used any of them.

This sort of information is held in online databases e.g. https://pubchem.ncbi.nlm.nih.gov/ptable/density/