CHEM-1601 Chapter Notes - Chapter 3: Periodic Trends, Atomic Number, Bond Length
12 May 2022
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Chapter three: what are periodic properties, periodic property: one that is generally predictable based on an element"s position within the periodic table. How are elements arranged in this table: dmitri mendeleev, elements listed in order of increasing mass; arranged rows so that elements w/ similar properties fall in the same vertical columns. Explain the contributions of meyer and moseley to the periodic table: meyer suggested a similar organization to the current one before. Mendeleev did: moseley showed that listing elements according to atomic number, rather than atomic mass, resulted in better correlation with elemental properties, the periodic table is a result of the periodic law. Provide an example: electron con guration: shows the particular orbitals that e- occupy for a particular atom i. Force of attraction = q1q2/r^2; q can = zeff: energy associated with interaction of like charges is positive but decreases as the particles get farther apart i.
