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Pre - AP Chemistry

Subjects : pre-ap, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An element that has some characteristics of metals and some characteristics of nonmetals






2. A vertical column of the periodic table






3. Minimum quantity of energy that can be lost or gained by an atom.






4. A high-temperature physical state of matter in which atoms lose their electrons






5. The total amount of energy level an atom has.






6. The smallest unit of an element that maintains the properties of that element






7. Having a uniform composition throughout






8. Describes mathematically the wave properties of electrons and other very small particles.






9. Which way it spins. (up or down)






10. Number of waves that pass a given point in a specific time - usually one second.






11. The closeness of a set of measurements of the same quantity made in the same way






12. The elements of group 17 of the periodic table.






13. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






14. A property that depends on the amount of matter that is present






15. A change in a substance that does not involve a change in the identity of the substance






16. Something that has magnitude - size - or amount






17. A pure substance made of only one kind of atom






18. The total number of protons and neutrons in the nucleus of an isotope






19. State in which an atom has a higher potential energy than it has in it's ground state.






20. Distance between corresponding points on adjacent waves.






21. A vertical column of the periodic table






22. The suborbitals of an atom. (S - P - D - F)






23. A measure of the amount of matter






24. A substance that reacts in a chemical change






25. An electron occupies the lowest-energy orbital that can receive it






26. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






27. An arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column or group.






28. A ratio derived from the equality between two different units that can be used to convert from one unit to the other






29. A blend of two or more kinds of matter - each of which retains its own identity and properties






30. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






31. The smallest unit of an element that maintains the properties of that element






32. An element that is a good conductor of heat and electricity






33. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound






34. An element that is a poor conductor of heat and electricity






35. A broad generalization that explains a body of facts or phenomena






36. Not having a uniform composition throughout






37. A property that does not depend on the amount of matter present






38. A reaction in which one or more substances are converted into different substances






39. The measurement system accepted worldwide

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40. Lowest energy state of an atom.






41. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation






42. Any process that results in the formation of an ion.






43. Two quantities that give a constant value when one is divided by the other






44. The 14 elements with the atomic numbers 90-103.






45. 1/2 the distance between the nuclei of identical atoms that are bonded together.






46. Any substance that has a definite composition






47. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






48. The state of matter in which the substance has a definite volume but an indefinite shape






49. The state of matter in which the substance has definite volume and definite shape






50. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated