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






2. Anything that has mass and takes up space






3. 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






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






5. The arrangement of electrons in an atom






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






7. Having a uniform composition throughout






8. The general term for any isotope of any element






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






10. The elements of group 1 of the periodic table.






11. Distance between corresponding points on adjacent waves.






12. A substance that reacts in a chemical change






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






14. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






17. 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.






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






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






20. A measure of the amount of matter






21. A testable statement






22. Combination of all the forms of electromagnetic radiation.






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






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






25. Lowest energy state of an atom.






26. 1/2 the distance between the nuclei of identical atoms that are bonded together.






27. A positive ion.






28. One wave per second.






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






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






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






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






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






34. A vertical column of the periodic table






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






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






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






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






39. A vertical column of the periodic table






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






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






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






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






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






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






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






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






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






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






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






Can you answer 50 questions in 15 minutes?



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