Test your basic knowledge |

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. One wave per second.






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






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






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






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






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






7. A positive ion.






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






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






11. Combination of all the forms of electromagnetic radiation.






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






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






14. The general term for any isotope of any element






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






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






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






18. A negative ion.






19. Not having a uniform composition throughout






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






21. The mass of one mole of a pure substance






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






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






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






25. A vertical column of the periodic table






26. Any substance that has a definite composition






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






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






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






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






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






32. A measure of the amount of matter






33. Having a uniform composition throughout






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






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






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






37. 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






38. A testable statement






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






40. Atoms of the same element that have different masses






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






42. A broad generalization that explains a body of facts or phenomena






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






44. The study of the composition - structure - and properties of matter and the changes it undergoes






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






46. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






50. Minimum quantity of energy that can be lost or gained by an atom.