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






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






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






4. A measure of the amount of matter






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






6. No two electrons in the same atom can have the same set of four quantum numbers






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






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






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






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






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






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






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






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






15. The amount of space occupied by an object






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






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






18. Combination of all the forms of electromagnetic radiation.






19. The arrangement of electrons in an atom






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






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






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






23. An atom or group of bonded atoms that has a positive or negative charge.






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






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






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






27. The mass of one mole of a pure substance






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






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






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






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






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






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






34. A testable statement






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






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






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






38. A substance that reacts in a chemical change






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






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






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






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






43. A chemical compound contains the same elementsin exactly the same proportions by mass regardless of the size of the sample orthe source of the compound






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






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






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






47. A vertical column of the periodic table






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






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






50. Any substance that has a definite composition