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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. Atoms of the same element that have different masses






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






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






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






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






6. Lowest energy state of an atom.






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






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






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






10. The mass of one mole of a pure substance






11. 1/2 the distance between the nuclei of identical atoms that are bonded together.






12. A negative ion.






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






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






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






16. A vertical column of the periodic table






17. Something that has magnitude - size - or amount






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






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






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






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






22. A measure of the amount of matter






23. A substance that is formed by a chemical change






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






25. One wave per second.






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






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






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






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






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






31. A measure of the gravitational pull on matter






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






33. The elements of group 1 of the periodic table.






34. A vertical column of the periodic table






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






36. The weighted average of the atomic masses of thenaturally occurring isotopes of an element






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






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






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






40. Not having a uniform composition throughout






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






42. A positive ion.






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






44. 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






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






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






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






48. The measurement system accepted worldwide

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






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