1. Objectives Define atomicandionic radii, ionization energy, electron affinity,andelectronegativity. Comparethe periodic trends of atomic radii, ionization energy, and electronegativity,…

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If a helium atom was the size of a full stop, then the average gerbil would be the size of the Earth. Atoms: very small Now let’s pretend that the helium atom on the right…

Slide 1 The Periodic Law Trends and the Periodic Properties Slide 2  Objectives  Define atomic and ionic radii, ionization energy, electron affinity, and electronegativity…

Slide 1Atoms! What is an atom? Please write your answer in a complete sentence or two. Slide 2 Atoms are small An atom is the smallest piece of matter that is stable under…

Slide 1 If a helium atom was the size of a full stop, then the average gerbil would be the size of the Earth. Atoms: very small Slide 2 Now let’s pretend that the helium…

Slide 1 1 CHAPTER 5 The Structure of Atoms Slide 2 2 Chapter Outline Subatomic Particles Fundamental Particles The Discovery of Electrons Canal Rays and Protons Rutherford…

Slide 1 History of Atomic Theory Slide 2 Scientists B.C. DemocritusAristotle 384-322 BC Believed matter is continuous 400 BC Coined the term “atom” Slide 3 Dalton’s…

Section 5-3: Electron Configuration and Periodic Properties Coach Kelsoe Chemistry Pages 150-164 Section Objectives Define atomic and ionic radii, ionization energy, electron…

Slide 1 Trends in the Periodic Table The trends (atomic radius, ion radius, ionization energy and electronegativity) can be explained using the concepts of energy levels…