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Learning Objectives:PSc.2.1.4• Describe the charge, relative mass, and the location of protons, electrons, and neutrons within an atom.• Calculate the number of protons, neutrons, electrons, and mass number in neutral atoms and ions.• Explain how the different mass numbers of isotopes contributes to the average atomic mass for a given element (conceptual, no calculations).• Use isotopic notation to write symbols for various isotopes (ex. Carbon-12, C-12, 12C, etc.)• Explain Bohr’s model of the atom.• Draw Bohr models from hydrogen to argon including common isotopes and ions.• Construct dot diagrams, a shorthand notation for Bohr models, using the element symbol and dots to represent electrons in the outermost energy level.PSc.2.2.1• Predict the number of valence electrons of representative elements (A Groups or 1, 2, 13-18) based on its location in the periodic table.• Predict an element’s oxidation number based on its position in the periodic table and valence electrons. (Representative groups including multiple oxidation states for tin and lead.)• Predict reactivity of metals and nonmetals from general periodic trends.
GlossaryProton (p+)Neutron (n0)Electron (e-)IsotopeNucleusElectron CloudAtomic numberMass numberAverage atomic massIsotopic notationValence PeriodGroupTransition metalsReactivity
Unit Notes
Unit Notes
Unit 2 Notes.pptxUnit 2 Guided Notes.docx
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