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






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






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






4. A measure of the amount of matter






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






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






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






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






9. A testable statement






10. Something that has magnitude - size - or amount






11. The arrangement of electrons in an atom






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






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






14. Anything that has mass and takes up space






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






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






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






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






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






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






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






22. A negative ion.






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






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






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






26. 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






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






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






29. A vertical column of the periodic table






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






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






32. A horizontal row of elements in the periodic table






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






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






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






36. Not having a uniform composition throughout






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






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






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






40. The mass of one mole of a pure substance






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






42. Having a uniform composition throughout






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






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






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






46. Combination of all the forms of electromagnetic radiation.






47. 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






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






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






50. A substance that is formed by a chemical change