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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. Having a uniform composition throughout






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






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






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






5. A horizontal row of elements in the periodic table






6. The general term for any isotope of any element






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






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






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






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






11. Not having a uniform composition throughout






12. The mass of one mole of a pure substance






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






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






15. A positive ion.






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






17. 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






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






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






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






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






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






23. Numbers written in the form M ×10 number greater than or equal to 1 but less than 10 and n is a whole number






24. 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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25. The elements of group 1 of the periodic table.






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






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






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






29. A broad generalization that explains a body of facts or phenomena






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






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






32. Combination of all the forms of electromagnetic radiation.






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






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






35. The measurement system accepted worldwide

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






37. The arrangement of electrons in an atom






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






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






40. A substance that is formed by a chemical change






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






42. Anything that has mass and takes up space






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






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






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






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






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






48. 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.






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






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







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Can you answer 50 questions in 15 minutes?


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