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 number of protons in the nucleus of each atom of an element






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






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






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






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






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






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






8. A vertical column of the periodic table






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






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






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






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






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






15. Atoms of the same element that have different masses






16. The mass of one mole of a pure substance






17. A testable statement






18. One wave per second.






19. Not having a uniform composition throughout






20. 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.






21. 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






22. A vertical column of the periodic table






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






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






25. Lowest energy state of an atom.






26. 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.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


27. A measure of the gravitational pull on matter






28. Having a uniform composition throughout






29. A substance that reacts in a chemical change






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






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






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






33. A logical approach to solving problems by observing and collecting data - formulating hypotheses - testing hypotheses - and formulating theories that are supported by data






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






35. A horizontal row of elements in the periodic table






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






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






38. Two quantities that have a constant mathematical product






39. A positive ion.






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






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






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






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






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






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






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






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






48. A negative ion.






49. A measure of the amount of matter






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