Making Molecular Models (Whiteboard)
You can create molecular structures by dragging the atoms. Atoms that no more needed can be returned to the periodic...
Atomic model
Mendeleev’s Periodic Table
Arrange the element cards As Mendeleev did. You can view it in full-screen mode by clicking the full-screen button. (There...
Matter Wave and de Broglie’s Atomic Model
Light has both particle and waves properties at the same time. Likewise, de Broglie (France, 1892 – 1987) thought that...
Rutherford Scattering and Size of Nucleus
Discovery of nuclear At the beginning of the 20th century, there was little known about the structure of atoms except...
Spectrum of Hydrogen Atom
Spectrum of hydrogen At the time of Rutherford’s experiments, chemists analyzed chemical components using spectroscopy, and physicists tried to find...
Structure of an Atom
The discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) –...
Energy Band of Metal
Energy band and band gap of atom According to Niels Bohr’s atomic model, electrons subordinate to an atomic nucleus do...
Bohr’s Atomic Model
The discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) –...
Scale of Atom
Each click on the screen increases or decreases by 10 times. The structure of the atom The matter is composed...
Rutherford Scattering
Discovery of nuclei At the beginning of the 20th century, little was known about atoms’ structure, except that atoms contain...
Electron Configuration of an Atom
Orbital An atom has an atomic nucleus with a (+) charge at the center and electrons with a negative charge...
