Atomic model

Mmendeleev

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 is a button between this article and the simulation screen. Look for it.) There is no function to verify the...

Matter Wave and de Broglie's Atomic Model

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 such things as electrons that had so far been considered particles might possess wave nature (1932). This is the idea...

Rutherford Scattering and Size of Nucleus

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 that they contained electrons. At that time, the atom was known as a pudding model containing raisins. According to this...

Spectrum of Hydrogen Atom

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 what kind of order in complex spectral lines. For example, a hydrogen arc tube containing hydrogen, a light element, shows...

Structure of an Atom

Structure of an Atom

The discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode ray tube to explain various phenomena of electrons...

Energy Band of Metal

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 not have continuous energy. Electrons can only have sparsely defined energies. This is why lines in the atomic model represent...

Bohr’s Atomic Model

Bohr’s Atomic Model

The discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode ray tube to explain various phenomena of electrons...

Scale of Atom

Scale of Atom

Each click on the screen increases or decreases by 10 times. The structure of the atom The matter is composed of atoms such as hydrogen, carbon, nitrogen, and oxygen, and the size of the atom is about 10-10m. Atoms consist...

Rutherford Scattering

Rutherford Scattering

Discovery of nuclei At the beginning of the 20th century, little was known about atoms’ structure, except that atoms contain electrons. At the time, the atom was thought to be as a model of pudding containing raisins. According to this...

Electron Configuration of an Atom

Electron Configuration of an Atom

Orbital An atom has an atomic nucleus with a (+) charge at the center and electrons with a negative charge around it. Electrons are arranged according to certain rules (wave functions), which are called ‘orbitals.’ In an atom, electrons form...