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






2. The state of matter in which the substance has a definite volume but an indefinite shape






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






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






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






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






8. Distance between corresponding points on adjacent waves.






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






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






11. A vertical column of the periodic table






12. 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






13. 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






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






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






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






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






18. Two quantities that have a constant mathematical product






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






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






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






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






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






24. Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.






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






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






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






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






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






30. A positive ion.






31. Anything that has mass and takes up space






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






33. One wave per second.






34. Atoms of the same element that have different masses






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






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






37. The measurement system accepted worldwide

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38. A measure of the amount of matter






39. A vertical column of the periodic table






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






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






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






43. 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.






44. Combination of all the forms of electromagnetic radiation.






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






46. 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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47. A pure substance made of only one kind of atom






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






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






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