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. Atoms of the same element that have different masses






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






3. 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.


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






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






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






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






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






9. A positive ion.






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






11. 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






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






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






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






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






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






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






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






19. Something that has magnitude - size - or amount






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






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






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






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






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






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






26. The arrangement of electrons in an atom






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






28. A substance that reacts in a chemical change






29. Not having a uniform composition throughout






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






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






32. A vertical column of the periodic table






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






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






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






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






37. A vertical column of the periodic table






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






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






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






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






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






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






44. 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






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






46. Lowest energy state of an atom.






47. A measure of the gravitational pull on matter






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






49. Having a uniform composition throughout






50. The general term for any isotope of any element