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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. Combination of all the forms of electromagnetic radiation.






3. A vertical column of the periodic table






4. 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.






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






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






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






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






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






10. The elements of group 1 of the periodic table.






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






12. Atoms of the same element that have different masses






13. A measure of the gravitational pull on matter






14. A value calculated by subtracting the experimental value from the accepted value - dividing the difference by the accepted value - and then multiplying by 100






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






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






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






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






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






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






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






22. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






25. Not having a uniform composition throughout






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






27. A negative ion.






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






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






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






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






32. Anything that has mass and takes up space






33. A substance that is formed by a chemical change






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






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






36. Any substance that has a definite composition






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






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






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






40. One wave per second.






41. Distance between corresponding points on adjacent waves.






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






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






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






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






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






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






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






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






50. 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