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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. Subatomic particle having a positive charge; found in nucleus






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






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






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






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






6. Subatomic particle without a charge; found in nucleus






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






8. Atoms that are held together by covalent bonds






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






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






11. Anything that occupies space and has mass






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






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






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






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






16. Atoms that have lost or gained electrons






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






18. Occurs when atoms share electrons






19. Indicates the formation of new substances from previous substances






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






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






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






23. Occurs when atoms transfer electrons to other atoms






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






25. Anything that occupies space and has mass






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






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






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






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






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






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






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






33. Indicates the formation of new substances from previous substances






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






35. Atoms that are held together by covalent bonds






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






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






38. Occurs when atoms transfer electrons to other atoms






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






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






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






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






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






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






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






46. Atoms that have lost or gained electrons






47. Subatomic particle without a charge; found in nucleus






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






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






50. Occurs when atoms share electrons