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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 amount of space occupied by an object






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






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






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






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






6. A vertical column of the periodic table






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






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






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






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






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






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






13. A form of energy that exhibits wavelike behavior as it travels through space (3.00x108 m/s)






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






15. 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






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






18. A measure of the amount of matter






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






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






21. The arrangement of electrons in an atom






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






23. A vertical column of the periodic table






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






25. A measure of the gravitational pull on matter






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






27. 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.






28. Having a uniform composition throughout






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






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






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






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






33. The mass of one mole of a pure substance






34. A testable statement






35. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






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






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






40. 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






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






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






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






44. One wave per second.






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






46. 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






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






48. Something that has magnitude - size - or amount






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






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