A periodic table of Mendeleev is a tabular display of the chemical elements, organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. Ask Heizenberg if you need some details.

Beautiful animations. HD images of Elements. Easy search for elements.

A lot useful data:

• Atomic Weight
• Atomic Number
• Electron Shell
• Electron Configuration
• Electron Affinity
• Group
• Period
• Room temperature phase
• Melting Point
• Boiling Point
• Appearance
• Density
• Molar heat
• Electronegativity pauling
• Discovered by
• Emission spectrum
• Number of protons, neutrons, electrons
• Valence
• Description of element
• Radioactivity