Periodic Table of Elements of chemistry with all essential information. Try it, really good for Chemistry Students. You will get all info of Elements like this:

Element: Hydrogen
Symbol: H
Atomic Number: 1
Mass Number: 1
Atomic Mass: 1.0079 g/mol
Density: 0.0899 g/cm3
Oxidation States: 1
Electron Configuration: 1s1
State: Gas
Melting Point: 14.025 K
Boiling Point: 20.268 K
DHvaporization: 0.44936 kJ/mol
DHfusion: 0.05868 kJ/mol
Specific Heat: 14.304 J/(g·K)
Group: 1 (IA)
Crystal: Hexagonal
Atomic Volume: 14.4 Å
Atomic Radius: 0.79 Å
Covalent Radius: 0.32 Å
Thermal Conductivity: 0.001815 1/(cm·K)
Ionization Potential: 13.598 eV
Electronegativity: 2.2