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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 measure of the gravitational pull on matter






2. Anything that has mass and takes up space






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






4. A vertical column of the periodic table






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






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






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






8. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






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






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






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






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






13. The arrangement of electrons in an atom






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






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






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






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






18. The general term for any isotope of any element






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






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






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






22. A horizontal row of elements in the periodic table






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






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






25. A measure of the amount of matter






26. One wave per second.






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






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






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






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






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






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






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






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






35. A testable statement






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






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






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






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






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






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






42. The amount of space occupied by an object






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






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






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






46. The measurement system accepted worldwide

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47. 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






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






49. A vertical column of the periodic table






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