5 Across: a representation of an object or situation that is simplified while including enough of the key features to help us understand the object or situation
Across 5. a representation of an object or situation that is simplified while including enough of the key features to help us understand the object or situation7. social insurance number8. integer number having only specific allowed values and used to characterize the arrangement of electrons in an atom (7, 6)10. any point of a standing wave with zero amplitude11. see attributeDown 1. the physical representation of the database (8, 5)2. the number of protons in an atom (6, 6)3. a market that only considers consumers, producers and the government, doesn’t include external agents (7, 6)4. the loss of shape in a protein as a result of changes in temperature, pH, or exposure to chemicals6. a good in which the quantity demanded rises as income rises, and in which quantity demanded falls as income falls (6, 4)9. electrically charged atom or molecule (contains unequal numbers of protons and electrons)