Test your basic knowledge |

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. Subatomic particle without a charge; found in nucleus






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






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






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






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






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






7. Atoms that have lost or gained electrons






8. Indicates the formation of new substances from previous substances






9. Subatomic particle without a charge; found in nucleus






10. Atoms that are held together by covalent bonds






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






12. Occurs when atoms share electrons






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






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






15. Atoms that have lost or gained electrons






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






17. Atoms that are held together by covalent bonds






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






19. Occurs when atoms transfer electrons to other atoms






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






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






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






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






24. Occurs when atoms transfer electrons to other atoms






25. Indicates the formation of new substances from previous substances






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






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






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






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






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






31. Anything that occupies space and has mass






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






33. Occurs when atoms share electrons






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






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






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






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






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






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






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






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






42. Anything that occupies space and has mass






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






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






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






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






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






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






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






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