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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 vertical column of the periodic table






2. A substance that is formed by a chemical change






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






4. A vertical column of the periodic table






5. A horizontal row of elements in the periodic table






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






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






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






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






10. The 14 elements with the atomic numbers 58-71.






11. The measurement system accepted worldwide

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






13. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






15. A measure of the gravitational pull on matter






16. A substance that has a fixed composition and differs from a mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition






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






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






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






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






21. A testable statement






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






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






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






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






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






27. 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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28. A substance that is made from the atoms of two or more elements that are chemically bonded






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






30. Atoms of the same element that have different masses






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






32. One wave per second.






33. Lowest energy state of an atom.






34. A unit that is a combination of SI base units






35. The mass of one mole of a pure substance






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






37. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






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






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






44. Distance between corresponding points on adjacent waves.






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






46. The state of matter in which a substance has neither definite volume nor definite shape






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






48. The amount of space occupied by an object






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






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