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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 pure substance made of only one kind of atom






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






3. 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.






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






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






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






7. The measurement system accepted worldwide

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






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






10. A vertical column of the periodic table






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






12. 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






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






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






15. One wave per second.






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






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






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






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






20. Which way it spins. (up or down)






21. Anything that has mass and takes up space






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






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






24. A vertical column of the periodic table






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






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






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






28. Having a uniform composition throughout






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






30. A substance that reacts in a chemical change






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






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






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






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






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






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






37. The arrangement of electrons in an atom






38. The elements of group 17 of the periodic table.






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






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






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






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






43. Lowest energy state of an atom.






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






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






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






47. A negative ion.






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






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






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