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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 smallest unit of an element that maintains the properties of that element






2. One wave per second.






3. The general term for any isotope of any element






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






5. A testable statement






6. Mass is neither created nor destroyed duringordinary chemical or physical reactions






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






8. The electrons available to be lost - gained - or shared in the formation of chemical compounds.






9. Two quantities that have a constant mathematical product






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






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






12. Distance between corresponding points on adjacent waves.






13. Atoms of the same element that have different masses






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






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






16. The elements of group 2 of the periodic table.






17. Any substance that has a definite composition






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






19. A measure of the amount of matter






20. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






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






22. 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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23. A vertical column of the periodic table






24. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition






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






26. The amount of space occupied by an object






27. A substance that is formed by a chemical change






28. The arrangement of electrons in an atom






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






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






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






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






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






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






35. An explanation of how phenomena occur and how data or events are related






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






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






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






39. States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.






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






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






42. A substance that reacts in a chemical change






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






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






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






46. Anything that has mass and takes up space






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






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






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






50. The measurement system accepted worldwide

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