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Bio 1 Unit Objectives Basic Chemistry Readings: Exploring Life: pp. 72-80 Exploring Life: Online Activity 4.1 & 4.2 Objectives: at the end of this unit, you should be able to: 1. distinguish between the chemical and physical properties of matter 2. determine whether a change in matter is chemical or physical 3. describe the structure and major subunits of an atom 4. discus and describe the atom in terms of atomic number, atomic mass, energy levels, isotopes and radioactive isotopes 5. explain how radioactive isotopes can be used to study biological processes 6. compare and contrast elements and compounds 7. compare and contrast ionic bonds and covalent bonds Key Terms: Matter Mass Chemical change Physical change Chemical property Physical property Electron Proton Neutron Energy shell/level (s) AMU/Dalton Atomic mass/weight Atomic number Periodic table Ion Cation Anion Isotope Radioactive isotope Chemical bonding Covalent Ionic