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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 58-71.






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






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






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






5. A testable statement






6. An electron occupies the lowest-energy orbital that can receive it






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






8. 1/2 the distance between the nuclei of identical atoms that are bonded together.






9. A substance that reacts in a chemical change






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






11. Two quantities that have a constant mathematical product






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






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






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. A positive ion.






16. A measure of the gravitational pull on matter






17. Anything that has mass and takes up space






18. A vertical column of the periodic table






19. 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






20. Combination of all the forms of electromagnetic radiation.






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






22. A horizontal row of elements in the periodic table






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






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






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






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






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






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






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






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






31. Which way it spins. (up or down)






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






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






34. The mass of one mole of a pure substance






35. Having a uniform composition throughout






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






37. Atoms of the same element that have different masses






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






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






40. Something that has magnitude - size - or amount






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






42. A negative ion.






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






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






45. One wave per second.






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






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






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






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






50. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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