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






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






3. The arrangement of electrons in an atom






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






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






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






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






8. A horizontal row of elements in the periodic table






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






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






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






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






13. The number of protons in the nucleus of each atom of an element






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






15. 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






16. Anything that has mass and takes up space






17. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






19. The amount of space occupied by an object






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






21. A testable statement






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






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






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






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






26. 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






27. A vertical column of the periodic table






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






29. A measure of the gravitational pull on matter






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






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






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






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






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






36. The measurement system accepted worldwide

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






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






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






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






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






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






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. A positive ion.






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






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






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






48. Atoms of the same element that have different masses






49. 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






50. Having a uniform composition throughout







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