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Test your basic knowledge |

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






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






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






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






5. A vertical column of the periodic table






6. 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.






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






8. A substance that is formed by a chemical change






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






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






11. 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






12. A horizontal row of elements in the periodic table






13. A vertical column of the periodic table






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






15. Anything that has mass and takes up space






16. A ratio derived from the equality between two different units that can be used to convert from one unit to the other






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






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






19. Atoms of the same element that have different masses






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






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






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






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






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






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






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






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






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






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






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






31. The amount of space occupied by an object






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






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






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






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






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






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






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






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






40. Having a uniform composition throughout






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






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






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






44. Lowest energy state of an atom.






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






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






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






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






49. A substance that reacts in a chemical change






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






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