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






2. A testable statement






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






4. Something that has magnitude - size - or amount






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






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






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






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






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






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






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






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






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






14. 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






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






16. A vertical column of the periodic table






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






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






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






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






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






22. Not having a uniform composition throughout






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






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






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






26. The elements of group 2 of the periodic table.






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






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






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






30. A measure of the amount of matter






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






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






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






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






35. Lowest energy state of an atom.






36. 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






37. Atoms of the same element that have different masses






38. A measure of the gravitational pull on matter






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






40. One wave per second.






41. A substance that reacts in a chemical change






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






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






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






45. Any substance that has a definite composition






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






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






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






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






50. A vertical column of the periodic table







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Can you answer 50 questions in 15 minutes?


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