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






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






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






4. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance


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






6. A vertical column of the periodic table






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






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






9. Combination of all the forms of electromagnetic radiation.






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






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






12. A horizontal row of elements in the periodic table






13. Something that has magnitude - size - or amount






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






15. Any substance that has a definite composition






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






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






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






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






20. A testable statement






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






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






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






24. Atoms of the same element that have different masses






25. The measurement system accepted worldwide


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






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






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






29. A measure of the amount of matter






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






31. Having a uniform composition throughout






32. 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.






33. One wave per second.






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






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






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






37. Lowest energy state of an atom.






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






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






40. Two quantities that have a constant mathematical product






41. Not having a uniform composition throughout






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






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






44. A positive ion.






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






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






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






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






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






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