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






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






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






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






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






6. Distance between corresponding points on adjacent waves.






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






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






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






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






11. Combination of all the forms of electromagnetic radiation.






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. Lowest energy state of an atom.






14. Something that has magnitude - size - or amount






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






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






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






18. 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






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






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






21. The arrangement of electrons in an atom






22. A substance that is formed by a chemical change






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






24. A measure of the amount of matter






25. A vertical column of the periodic table






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






27. One wave per second.






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






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






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






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






32. A measure of the gravitational pull on matter






33. 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






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






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






36. The mass of one mole of a pure substance






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






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






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






40. A testable statement






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






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






43. A positive ion.






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






45. Which suborbital. (Py - Px - Pz)






46. The amount of space occupied by an object






47. A horizontal row of elements in the periodic table






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






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






50. A reaction in which one or more substances are converted into different substances