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






2. The measurement system accepted worldwide

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






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






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






6. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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7. A testable statement






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






9. A high-temperature physical state of matter in which atoms lose their electrons






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






12. 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






13. The arrangement of electrons in an atom






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






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






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






17. Distance between corresponding points on adjacent waves.






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






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






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






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






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






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






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






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






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






27. A vertical column of the periodic table






28. A substance that reacts in a chemical change






29. A negative ion.






30. An outer main energy level occupied - in most cases - by 8 electrons






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






32. A measure of the amount of matter






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






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






35. 1/2 the distance between the nuclei of identical atoms that are bonded together.






36. A vertical column of the periodic table






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






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






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






40. The Group 18 elements (helium - neon - argon - krypton - xenon - and radon)






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






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






43. Atoms of the same element that have different masses






44. 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.






45. Two quantities that have a constant mathematical product






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






47. The closeness of a set of measurements of the same quantity made in the same way






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






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






50. Something that has magnitude - size - or amount