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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. Combination of all the forms of electromagnetic radiation.






2. Lowest energy state of an atom.






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






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






6. Atoms of the same element that have different masses






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






8. Anything that has mass and takes up space






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






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






11. The mass of one mole of a pure substance






12. The measurement system accepted worldwide

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






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






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






16. The arrangement of electrons in an atom






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






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






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






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






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






22. Any substance that has a definite composition






23. Two quantities that have a constant mathematical product






24. Distance between corresponding points on adjacent waves.






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






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






27. The number of protons in the nucleus of each atom of an element






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






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






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






31. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






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






33. Any process that results in the formation of an ion.






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






35. Something that has magnitude - size - or amount






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






37. 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






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






39. A testable statement






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






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






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






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






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






46. 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






47. A vertical column of the periodic table






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






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






50. A vertical column of the periodic table