Chemistry terms1

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Across
  1. 4. undergo
  2. 6. number number of protons in nucleus of an atom
  3. 9. a substance that dissolves in water to form hydroxide ions
  4. 10. minimum energy required to remove an electtron
  5. 12. a bond formed through sharing pairs of electrons donated equally
  6. 13. acid acid that ionize partially in water to form few hydrogen ions
  7. 14. ionic compound formed when an acid reacts with a metal or ammonia ion
  8. 16. salt containing replaceable hydrogen
  9. 18. electrostatic force of attraction between positively charged nucleus and delocalized electrons
  10. 22. salt that lacks replaceable hydrogen
  11. 23. constant temperature at which solid Changes into liquid
  12. 25. acid that occur naturally from plants and animals
  13. 26. an acid that can be prepared from available minerals
  14. 27. energy released when atom in gaseous state gains electrons
  15. 28. substance made of two or more elements chemically combined
  16. 30. degree of acidity or alkalinity
  17. 31. base a base that ionize completely in water to form more hydroxide ions
  18. 33. different crystalline forms of an element in same physical state
  19. 34. substance that dissolves in water to form hydrogen ions
  20. 35. a substance that shows a definite color in acid and different color in base
  21. 36. a soluble base
Down
  1. 1. substance that ionize completely in water to form more hydrogen ions
  2. 2. A salt that contains hydroxyl ions
  3. 3. substance made of two or more elements that can be separated by physical means
  4. 5. base that ionize partially in water producing few hydroxide ion
  5. 7. mutual electrostatic forces of attraction between oppositely charged ions
  6. 8. a process of obtaining crystals from a saturated solution
  7. 11. atoms of same element with same protons but different neutrons
  8. 12. study of matter, composition,property and changes that
  9. 15. change from solid to gas
  10. 17. existence of an element in different crystalline forms
  11. 19. process of separation of colors
  12. 20. Average mass of an atom of an element
  13. 21. constant temperature at which a liquid change to gas
  14. 24. a reaction between acid and base
  15. 29. sum of protons and neutrons in the nucleus of an atom
  16. 32. apart of element or compound that exist separately
  17. 34. smallest particle of an element that take part in a chemical reaction