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






2. A vertical column of the periodic table






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






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






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






6. A unit that is a combination of SI base units






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






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






9. The mass of one mole of a pure substance






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






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






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






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






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






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






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






17. Combination of all the forms of electromagnetic radiation.






18. A vertical column of the periodic table






19. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






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






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






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






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






24. A horizontal row of elements in the periodic table






25. The general term for any isotope of any element






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






27. Anything that has mass and takes up space






28. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






30. Distance between corresponding points on adjacent waves.






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






32. 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






33. 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.






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






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






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






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






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






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






40. The electrons available to be lost - gained - or shared in the formation of chemical compounds.






41. Lowest energy state of an atom.






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






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






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






45. Atoms of the same element that have different masses






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






47. A positive ion.






48. The measurement system accepted worldwide

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






50. The amount of space occupied by an object