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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. Which way it spins. (up or down)






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






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






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 general term for any isotope of any element






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






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






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






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






11. A unit of mass that is exactly 1/12 the mass of a carbon-12atom - or 1.660 540 × 10-27 kg






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






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






14. A substance that is formed by a chemical change






15. A horizontal row of elements in the periodic table






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






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






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






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






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






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






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






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






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






25. Which suborbital. (Py - Px - Pz)






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






27. The measurement system accepted worldwide

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28. Narrow beam of the emitted light was shined through a prism - it was separated into four specific colors of the visible spectrum.






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






30. A vertical column of the periodic table






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






32. 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






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






34. 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






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






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






37. A negative ion.






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






39. A unit that is a combination of SI base units






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






41. Lowest energy state of an atom.






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






43. A substance that reacts in a chemical change






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






45. Any digit in a measurement that is known with certainty plus one final digit - which is somewhat uncertain or is estimated






46. Two quantities that have a constant mathematical product






47. Combination of all the forms of electromagnetic radiation.






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






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






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