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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 d-block elements are metals with typical metallic properties.






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






3. The amount of space occupied by an object






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






5. 6.022 1367 × 1023; the number of particles in exactly onemole of a pure substance

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6. The measurement system accepted worldwide

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






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






9. Not having a uniform composition throughout






10. The state of matter in which the substance has definite volume and definite shape






11. 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






12. A short-range proton-neutron - proton-proton - or neutrorce that holds the nuclear particles together






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






14. An explanation of how phenomena occur and how data or events are related






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






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






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






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






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






20. Combination of all the forms of electromagnetic radiation.






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






22. The ability of a substance to undergo a change that transforms it into a different substance






23. The general term for any isotope of any element






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






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






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






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






28. 1/2 the distance between the nuclei of identical atoms that are bonded together.






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






30. One wave per second.






31. Lowest energy state of an atom.






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






33. Atoms of the same element that have different masses






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






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






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






37. A positive ion.






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






39. Having a uniform composition throughout






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






41. The mass of one mole of a pure substance






42. Anything that has mass and takes up space






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






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






45. A substance that reacts in a chemical change






46. A property that does not depend on the amount of matter present






47. A vertical column of the periodic table






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






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






50. Any substance that has a definite composition







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Can you answer 50 questions in 15 minutes?


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