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






2. The d-block elements are metals with typical metallic properties.






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






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






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






6. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






11. Atoms of the same element that have different masses






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






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






14. A substance that reacts in a chemical change






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






16. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






17. One wave per second.






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






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






20. A vertical column of the periodic table






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






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






23. The amount of space occupied by an object






24. A specific portion of matter in a given region of space that has been selected for study during an experiment or observation






25. A horizontal row of elements in the periodic table






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






27. Distance between corresponding points on adjacent waves.






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






29. The arrangement of electrons in an atom






30. The mass of one mole of a pure substance






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






32. Anything that has mass and takes up space






33. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






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






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






36. Combination of all the forms of electromagnetic radiation.






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






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






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






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






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






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






43. Lowest energy state of an atom.






44. Having a uniform composition throughout






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






46. A high-temperature physical state of matter in which atoms lose their electrons






47. Any substance that has a definite composition






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






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






50. 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