![]() Students may be interested in the even smaller particles of quantum physics-like quarks, bosons, neutrinos, and antineutrinos. Bohr used the term energy levels (or shells) to describe these orbits of differing energy. They are intended to get players thinking about what they already know about elements. Niels Bohr, a Danish scientist, explained this line spectrum while developing a model for the atom: The Bohr model shows that the electrons in atoms are in orbits of differing energy around the nucleus (think of planets orbiting around the sun). Bohr’s model required only one assumption: The electron moves around the nucleus in circular orbits that can have only certain allowed radii. General questions about the properties of elements assume standard temperature and pressure (helium is liquid below -268☌ and gold is a liquid above 1064 ☌). In 1913, a Danish physicist, Niels Bohr (18851962 Nobel Prize in Physics, 1922), proposed a theoretical model for the hydrogen atom that explained its emission spectrum. For this game, the most common isotopes of the chemical elements are used. This game presents a simple introduction to the Rutherford-Bohr model of the atom and the way we organize the elements. NS 5.8.2 - Develop an understanding of properties of matter Note: Any bond or intermolecular attraction that can be formed can be broken.Chemical and physical properties of materials can be explained by the structure and arrangement of atoms, ions, and molecules and the forces between them.Matter is made from discrete fundamental units called atoms.Concepts:Ĭhemical elements, Periodic Table, chemical symbols, atom, atomic number, atomic weight, protons, electrons, neutrons, atomic structure. Interactive module that introduces atomic structure Learning objectives:Īfter this activity, the student will be able to describe the basic structure of matter, name the parts of an atom, have experience using the Periodic Table, explain elements, and have the background to understand isotopes. ![]() ![]() Teacher Information: Activity Description:
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