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






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






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 arrangement of electrons in an atom






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






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






7. The mass of one mole of a pure substance






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






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






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






11. A vertical column of the periodic table






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






13. Not having a uniform composition throughout






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






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






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






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






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






19. The measurement system accepted worldwide

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






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






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






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






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






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






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






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






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






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






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






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






32. A negative ion.






33. Combination of all the forms of electromagnetic radiation.






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






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






36. Having a uniform composition throughout






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






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






39. Lowest energy state of an atom.






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






41. Any substance that has a definite composition






42. A testable statement






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






44. 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






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






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






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






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






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






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