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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. A unit that is a combination of SI base units






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






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






4. A positive ion.






5. A testable statement






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






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






8. A substance that is formed by a chemical change






9. Distance between corresponding points on adjacent waves.






10. Combination of all the forms of electromagnetic radiation.






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






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






13. Not having a uniform composition throughout






14. Having a uniform composition throughout






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






16. 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.






17. A negative ion.






18. A vertical column of the periodic table






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






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






21. The measurement system accepted worldwide

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






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






24. Emission of electrons from a metal when light shines on a metal.






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






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






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






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






29. 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






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






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






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






33. The 14 elements with the atomic numbers 58-71.






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






35. One wave per second.






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






37. Which suborbital. (Py - Px - Pz)






38. The general term for any isotope of any element






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






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






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






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






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






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






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






46. Lowest energy state of an atom.






47. Two quantities that have a constant mathematical product






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






49. Any substance that has a definite composition






50. Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron - and all electrons in singly occupied orbitals must have the same spin state.

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