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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 14 elements with the atomic numbers 90-103.






2. Lowest energy state of an atom.






3. One wave per second.






4. A horizontal row of elements in the periodic table






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






6. A substance that is formed by a chemical change






7. Distance between corresponding points on adjacent waves.






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






9. Two quantities that have a constant mathematical product






10. The arrangement of electrons in an atom






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






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






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






14. Not having a uniform composition throughout






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






16. Atoms of the same element that have different masses






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






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






19. A testable statement






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






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






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






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






24. Combination of all the forms of electromagnetic radiation.






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






26. 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






27. The closeness of a set of measurements of the same quantity made in the same way






28. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






29. Having a uniform composition throughout






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






31. 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






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






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






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






35. Anything that has mass and takes up space






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






37. Something that has magnitude - size - or amount






38. The total amount of energy level an atom has.






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






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






42. A vertical column of the periodic table






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






44. A vertical column of the periodic table






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






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






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






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






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






50. The amount of space occupied by an object







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Can you answer 50 questions in 15 minutes?


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