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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 14 elements with the atomic numbers 90-103.






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






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






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






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






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






7. Two quantities that have a constant mathematical product






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






9. A vertical column of the periodic table






10. A substance that reacts in a chemical change






11. 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.


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






13. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance


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






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






16. A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.






17. The amount of space occupied by an object






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






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






20. A measure of the gravitational pull on matter






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






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






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






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






25. One wave per second.






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






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






28. Something that has magnitude - size - or amount






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






30. 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






31. A testable statement






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






33. A measure of the amount of matter






34. Any substance that has a definite composition






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






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






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






38. The mass of one mole of a pure substance






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






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






41. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






42. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






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






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






45. Atoms of the same element that have different masses






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






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






48. A negative ion.






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






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