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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 ratio of mass to volume or mass divided by volume






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






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






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






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






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






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






9. The measurement system accepted worldwide

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






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






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

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13. The general term for any isotope of any element






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






15. A negative ion.






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






17. One wave per second.






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






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






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






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






22. Any substance that has a definite composition






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






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






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






26. The arrangement of electrons in an atom






27. 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






28. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






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






30. Lowest energy state of an atom.






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






32. Having a uniform composition throughout






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






34. A testable statement






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






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






37. Anything that has mass and takes up space






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






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






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






41. A vertical column of the periodic table






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






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






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






45. Distance between corresponding points on adjacent waves.






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






47. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






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






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







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Can you answer 50 questions in 15 minutes?


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