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






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






3. A reaction in which one or more substances are converted into different substances






4. Distance between corresponding points on adjacent waves.






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






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






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






8. A substance that reacts in a chemical change






9. Not having a uniform composition throughout






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






11. 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






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






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






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






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






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






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






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






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






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






21. The amount of space occupied by an object






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






23. A testable statement






24. 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






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






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






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






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






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






30. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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31. Atoms of the same element that have different masses






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






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






34. A vertical column of the periodic table






35. The arrangement of electrons in an atom






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






37. The general term for any isotope of any element






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






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






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






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






42. 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






43. The mass of one mole of a pure substance






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






45. A measure of the amount of matter






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






47. A negative ion.






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






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






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