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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. The measurement system accepted worldwide


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






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






4. A negative ion.






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






6. Having a uniform composition throughout






7. The arrangement of electrons in an atom






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






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






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






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






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






13. A measure of the amount of matter






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






15. 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.


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






17. A testable statement






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






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






20. A positive ion.






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






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






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






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






25. A vertical column of the periodic table






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






27. Two quantities that have a constant mathematical product






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






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






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






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






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. The elements of group 1 of the periodic table.






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






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






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






37. Not having a uniform composition throughout






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






39. The general term for any isotope of any element






40. Atoms of the same element that have different masses






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






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






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






44. A vertical column of the periodic table






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






46. A measure of the gravitational pull on matter






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






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






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






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