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






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






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






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






5. Combination of all the forms of electromagnetic radiation.






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






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






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






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






10. 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.






11. Having a uniform composition throughout






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






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






14. An element that is a poor conductor of heat and electricity






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






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






17. The measurement system accepted worldwide


18. The amount of space occupied by an object






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






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






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






22. 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.


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






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






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






26. Distance between corresponding points on adjacent waves.






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






28. Any substance that has a definite composition






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






30. The energy change that occurs when an electron is acquired by a neutral atom.






31. Not having a uniform composition throughout






32. 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






33. Anything that has mass and takes up space






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






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






36. Something that has magnitude - size - or amount






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






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






39. The arrangement of electrons in an atom






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






41. Lowest energy state of an atom.






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






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






44. A pure substance made of only one kind of atom






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






46. A measure of the amount of matter






47. A vertical column of the periodic table






48. A measure of the gravitational pull on matter






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






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