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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. A horizontal row of elements in the periodic table






2. 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






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






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






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






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






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






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






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






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






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






12. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






15. Distance between corresponding points on adjacent waves.






16. Something that has magnitude - size - or amount






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






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






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






20. Atoms of the same element that have different masses






21. The mass of one mole of a pure substance






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






23. A measure of the gravitational pull on matter






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






25. Anything that has mass and takes up space






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






27. The elements of group 2 of the periodic table.






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






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






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






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






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






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






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






35. 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.






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






37. A testable statement






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






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






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






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






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






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






44. A negative ion.






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






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






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






48. A substance that is formed by a chemical change






49. A substance that reacts in a chemical change






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