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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. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






2. Specify the properties of atomic orbitals and the properties of electrons in orbitals.






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






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






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






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






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






8. Something that has magnitude - size - or amount






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






10. An element that has some characteristics of metals and some characteristics of nonmetals






11. Lowest energy state of an atom.






12. Any substance that has a definite composition






13. A negative ion.






14. A vertical column of the periodic table






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






16. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






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






18. A characteristic that can be observed or measured without changing the identity of the substance






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






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






21. The elements of group 1 of the periodic table.






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






23. The emission of a continuous range of frequencies of electromagnetic radiation.






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






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






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






27. A positive ion.






28. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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29. A substance that is made from the atoms of two or more elements that are chemically bonded






30. The energy required to remove one electron from a neutral atom of an element.






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






32. The arrangement of electrons in an atom






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






34. The state of matter in which a substance has neither definite volume nor definite shape






35. The ratio of mass to volume or mass divided by volume






36. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






37. A substance that is formed by a chemical change






38. Atoms of the same element that have different masses






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






40. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






41. A unit that is a combination of SI base units






42. The closeness of measurements to the correct or accepted value of the quantity measured






43. A 3D region around the nucleus that indicates the probable location of an electron.






44. A physical change of a substance from one state to another






45. Anything that has mass and takes up space






46. A horizontal row of elements in the periodic table






47. A change in which one or more substances are converted into different substances






48. One wave per second.






49. Distance between corresponding points on adjacent waves.






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