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






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






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






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






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






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






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






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






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






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






11. The 14 elements with the atomic numbers 90-103.






12. A substance that reacts in a chemical change






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






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






15. A vertical column of the periodic table






16. Anything that has mass and takes up space






17. A horizontal row of elements in the periodic table






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






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






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






21. 1/2 the distance between the nuclei of identical atoms that are bonded together.






22. A positive ion.






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






24. A measure of the amount of matter






25. The mass of one mole of a pure substance






26. 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






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






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






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






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






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






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






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






34. 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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35. The elements of group 17 of the periodic table.






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






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






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






39. Lowest energy state of an atom.






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






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






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






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






44. Two quantities that give a constant value when one is divided by the other






45. Something that has magnitude - size - or amount






46. One wave per second.






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






48. Two quantities that have a constant mathematical product






49. The arrangement of electrons in an atom






50. A substance that is formed by a chemical change