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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. Not having a uniform composition throughout






3. The p-block elements together with the s-block elements.






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






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






6. Combination of all the forms of electromagnetic radiation.






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






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






9. A vertical column of the periodic table






10. A positive ion.






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






12. A measure of the amount of matter






13. If two or more different compounds arecomposed of the same two elements - then the ratio of the masses of the secondelement combined with a certain mass of the first element is always a ratio ofsmall whole numbers






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






15. A substance that reacts in a chemical change






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






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






18. Atoms of the same element that have different masses






19. A vertical column of the periodic table






20. An outer main energy level occupied - in most cases - by 8 electrons






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






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






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






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






25. A substance that is formed by a chemical change






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






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






28. The measurement system accepted worldwide

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29. No two electrons in the same atom can have the same set of four quantum numbers






30. A testable statement






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






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






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






34. The study of the composition - structure - and properties of matter and the changes it undergoes






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






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






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






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






39. Any substance that has a definite composition






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






41. An atom or group of bonded atoms that has a positive or negative charge.






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






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






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






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






46. The energy change that occurs when an electron is acquired by a neutral atom.






47. The ability of a substance to undergo a change that transforms it into a different substance






48. Distance between corresponding points on adjacent waves.






49. The d-block elements are metals with typical metallic properties.






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