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Basic Chemistry

Subjects : science, chemistry
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 smallest particle of an element that retains the properties of the element






2. Subatomic particle without a charge; found in nucleus






3. Indicates the number and types of atoms in a molecule






4. Shows the number and types of atoms in a molecule and how they are arranged






5. Subatomic particle having a positive charge; found in nucleus






6. Indicates the formation of new substances from previous substances






7. Electrons in the outermost energy level; they are involved in bond formation






8. Occurs when atoms transfer electrons to other atoms






9. Identifies a specific element; equals the number of protons in an atom of each element






10. The starting materials for a reaction; found on left side of chemical equation






11. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy






12. Indicates the formation of new substances from previous substances






13. Substance made of two or more elements & none of which is carbon






14. Occurs when atoms transfer electrons to other atoms






15. A covalent bond in which four valence electrons are shared between two atoms






16. Occurs when atoms share electrons






17. Occurs when atoms share electrons






18. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy






19. The smallest particle of an element that retains the properties of the element






20. A covalent bond in which four valence electrons are shared between two atoms






21. Substance made of two or more elements & one being carbon






22. Shows the number and types of atoms in a molecule and how they are arranged






23. Anything that occupies space and has mass






24. Substance containing two or more elements chemically combined in a fixed ratio






25. Subatomic particle having a negative charge; not in nucleus but surrounds it






26. Ending materials of a reaction; found on right side of chemical equation






27. Subatomic particle having a negative charge; not in nucleus but surrounds it






28. A pure substance that cannot be broken down into other substances by chemical reactions






29. Interaction of substances that lead to the formation of new substances






30. Ending materials of a reaction; found on right side of chemical equation






31. Substance containing two or more elements chemically combined in a fixed ratio






32. Atoms having the same numbers of protons but different numbers of neutrons






33. Protons and neutrons together; make up the center of an atom






34. Atoms that have lost or gained electrons






35. Electrons in the outermost energy level; they are involved in bond formation






36. Atoms having the same numbers of protons but different numbers of neutrons






37. Subatomic particle without a charge; found in nucleus






38. Indicates the number and types of atoms in a molecule






39. A covalent bond in which one pair of electrons is shared






40. Atoms that are held together by covalent bonds






41. Subatomic particle having a positive charge; found in nucleus






42. Identifies a specific element; equals the number of protons in an atom of each element






43. Anything that occupies space and has mass






44. A pure substance that cannot be broken down into other substances by chemical reactions






45. Protons and neutrons together; make up the center of an atom






46. Atoms that are held together by covalent bonds






47. Substance made of two or more elements & none of which is carbon






48. The starting materials for a reaction; found on left side of chemical equation






49. Substance made of two or more elements & one being carbon






50. Interaction of substances that lead to the formation of new substances