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






2. 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






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






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






5. A testable statement






6. The general term for any isotope of any element






7. Something that has magnitude - size - or amount






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






9. Lowest energy state of an atom.






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






11. Distance between corresponding points on adjacent waves.






12. Any substance that has a definite composition






13. 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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14. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






16. A vertical column of the periodic table






17. Atoms of the same element that have different masses






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






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






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






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






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






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






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






25. A horizontal row of elements in the periodic table






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






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






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






29. 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






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






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






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






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






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






35. The amount of space occupied by an object






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






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






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






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






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






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






42. A substance that is formed by a chemical change






43. A negative ion.






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






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






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






47. 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.






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






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






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