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Learning Intentions
You can describe each atom has a charged substructure consisting of a nucleus, which is made of protons and neutrons, surrounded by electrons.
You explain how the structure of the atomic model has changed over time by examining the various models to create a drawing of each model and then determine the explanation for the model, the evidence that supported the model and what caused it to no longer be accepted.
Content Standards being covered:
Student understands the structure of matter at the atomic level and the history that lead to our current understanding.
54. Protons and neutrons have a general mass of 1 atomic mass unit (amu), while an electron has a relative mass of 0.0005 amu. Protons and neutrons therefore contribute to an atom's mass and can be added together to determine atomic mass. The electron’s mass is not significant in comparison.
55. An isotope is the same element with different amounts of neutrons and therefore affects the mass of the atom
56. Average atomic mass is a relative atomic mass number that is based on the masses of all known isotopes and their relative abundance in the universeReviewing 51-53and 57-67
Habits of Mind/Life skills being covered:
Creating, Imagining, Innovating
Journal Entry:
What is your current understanding about the structure of an atom? Draw a picture to show and label parts you know.