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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 vertical column of the periodic table






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






3. 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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4. A measure of the amount of matter






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






6. Combination of all the forms of electromagnetic radiation.






7. Anything that has mass and takes up space






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






9. A measure of the gravitational pull on matter






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






11. Two quantities that have a constant mathematical product






12. 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






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






14. 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






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






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






17. A positive ion.






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






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






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






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






22. The amount of a substance that contains as many particles as there areatoms in exactly 12 g of carbon-12






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






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






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






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






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






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






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






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






31. A vertical column of the periodic table






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






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






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






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






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






37. A testable statement






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






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






40. Atoms of the same element that have different masses






41. A negative ion.






42. One wave per second.






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






44. Lowest energy state of an atom.






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






46. 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.






47. A horizontal row of elements in the periodic table






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






49. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






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