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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 weighted average of the atomic masses of thenaturally occurring isotopes of an element






2. Anything that has mass and takes up space






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






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






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






6. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






9. The measurement system accepted worldwide

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






11. A vertical column of the periodic table






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






13. 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






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






15. The arrangement of electrons in an atom






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






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






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






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






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






21. Atoms of the same element that have different masses






22. A substance that is formed by a chemical change






23. Lowest energy state of an atom.






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






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






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






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






28. Any substance that has a definite composition






29. The mass of one mole of a pure substance






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






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






32. A negative ion.






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






34. Combination of all the forms of electromagnetic radiation.






35. A measure of the gravitational pull on matter






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






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






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






39. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






41. A horizontal row of elements in the periodic table






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






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






44. A measure of the amount of matter






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






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






47. The amount of space occupied by an object






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






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






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