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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 emission of a continuous range of frequencies of electromagnetic radiation.






2. An outer main energy level occupied - in most cases - by 8 electrons






3. Anything that has mass and takes up space






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






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






6. A measure of the amount of matter






7. A vertical column of the periodic table






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






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






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






11. Two quantities that have a constant mathematical product






12. One wave per second.






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






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






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






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






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






18. A testable statement






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






20. The 14 elements with the atomic numbers 90-103.






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






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 reaction in which one or more substances are converted into different substances






24. Not having a uniform composition throughout






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






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






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






28. The general term for any isotope of any element






29. Atoms of the same element that have different masses






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






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






32. A positive ion.






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






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






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






36. Combination of all the forms of electromagnetic radiation.






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






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






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






40. The arrangement of electrons in an atom






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






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






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






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






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






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






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






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






49. 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.






50. Number of waves that pass a given point in a specific time - usually one second.