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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. The total amount of energy level an atom has.






3. A vertical column of the periodic table






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






5. Something that has magnitude - size - or amount






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






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






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






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






10. A property that does not depend on the amount of matter present






11. A property that depends on the amount of matter that is present






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






13. A substance that is formed by a chemical change






14. A substance that reacts in a chemical change






15. The physical and chemical properties of the elements are periodic functions of their atomic numbers.






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






17. Lowest energy state of an atom.






18. A negative ion.






19. 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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20. One wave per second.






21. Distance between corresponding points on adjacent waves.






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






23. 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






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






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






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






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






28. The arrangement of electrons in an atom






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






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






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






32. 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






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






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






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






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






37. Not having a uniform composition throughout






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






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






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






41. The measurement system accepted worldwide

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42. Two quantities that have a constant mathematical product






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






44. Combination of all the forms of electromagnetic radiation.






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






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






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






48. Atoms of the same element that have different masses






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






50. 1/2 the distance between the nuclei of identical atoms that are bonded together.