DO NOW DECEMBER 10, 2012.

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Presentation transcript:

DO NOW DECEMBER 10, 2012

Calculate the number of electrons, protons, and neutrons for the following elements: Mendelevium Curium Bismuth Tin Cadmium Iodine Argon Oxygen

Terminology The force that holds atoms or ions together as a unit. A mixture of two or more elements, at least one of which is a metal, that has the characteristic properties of a metal. The chemical energy stored in living things. A series of fission reactions triggered by neutrons released during the fission of a nucleus. The study of the universe beyond Earth. An electron emitted by an unstable nucleus. astronomy Beta particle alloy Chemical bond Chain reaction Biomass energy

Objectives: SWBAT: describe Bohr’s model of the atom and the evidence for energy levels. SWBAT: explain how the electron cloud model represents the behavior and locations of electrons in atoms. SWBAT: distinguish the ground state from the excited states of an atom based on electron configurations.

Independent Practice Re-illustrate the science & history models of the atom timeline on pages 114-115. Recreate the timeline exactly as it is shown.

Exit Ticket Complete the following statements: An electron in an atom can move….. Scientists use the electron cloud model to…… An electron cloud is good…. The most stable electron configuration is….