Objectives Explain the roles of Mendeleev and Moseley in the development of the periodic table Describe the modern periodic table Explain how the periodic law can be used to predict the physical and chemical properties of elements Describe how the elements belonging to a ...
Section 4.4—The Periodic Table Objectives Explain how the modern periodic table was developed Describe the key features of the periodic table Explain why elements in the same group have similar properties History of the Periodic Table In the 1790’s Antoine Lavoisier compiled a list of 33 known ...
In fact, things are far more complex than this—especially when it comes to certain elements in the middle of the periodic table (in groups 14 and 15), notably silicon and germanium. Normally insulators, these elements can be made to behave more like conductors if we add small quantities ...
How does laser technology apply to quantum mechanics? What causes quantum mottle? How does the Pauli exclusion principle explain the periodic table? What is an observable in quantum mechanics? How was quantum physics discovered? How does Huygen's principle explain diffraction?
A great example of this is the Periodic Table, Dmitri Mendeleev's explanation of how different atoms relate to one another. When he drew up the table, there were various gaps in his diagram that predicted the existence of elements (such as gallium and germanium) that had not yet been ...