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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 without a charge; found in nucleus






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






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






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






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






6. Atoms that have lost or gained electrons






7. Occurs when atoms share electrons






8. Occurs when atoms transfer electrons to other atoms






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






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






11. Atoms that are held together by covalent bonds






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






13. Subatomic particle without a charge; found in nucleus






14. Atoms that have lost or gained electrons






15. Anything that occupies space and has mass






16. Indicates the formation of new substances from previous substances






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






18. Occurs when atoms share electrons






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






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






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






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






23. Anything that occupies space and has mass






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






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






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






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. Atoms that are held together by covalent bonds






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






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






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






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






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






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






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






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






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






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






40. Indicates the formation of new substances from previous substances






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






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






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






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






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






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






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






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






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






50. Occurs when atoms transfer electrons to other atoms