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






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






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.

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






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






6. The arrangement of electrons in an atom






7. Any substance that has a definite composition






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






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






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






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






12. A testable statement






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






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






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






16. Lowest energy state of an atom.






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






18. Two quantities that have a constant mathematical product






19. A negative ion.






20. 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






21. A measure of the gravitational pull on matter






22. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






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






25. A substance that is formed by a chemical change






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






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






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






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






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






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






32. 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






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






34. The general term for any isotope of any element






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






36. Anything that has mass and takes up space






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






38. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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






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






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






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






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






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






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






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






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






48. A positive ion.






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






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