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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. Distance between corresponding points on adjacent waves.






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






3. The suborbitals of an atom. (S - P - D - F)






4. Anything that has mass and takes up space






5. Atoms of the same element that have different masses






6. A negative ion.






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






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






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






10. A substance that reacts in a chemical change






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






12. The arrangement of electrons in an atom






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






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






16. Any substance that has a definite composition






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






18. Two quantities that have a constant mathematical product






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






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






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






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






23. A vertical column of the periodic table






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






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






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






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






28. 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






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






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






31. One wave per second.






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






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






34. 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






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






36. A measure of the gravitational pull on matter






37. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






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






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






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






45. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






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






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






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






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






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