Chemistry Crossword Puzzle

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Across
  1. 1. splitting of nucleus
  2. 3. study of matter and energy and the interactions between them
  3. 5. He stated that mass is neither created nor destroyed
  4. 7. A system's ability to do work.
  5. 9. chemical species formed by two or more atoms that share chemical bonds such that they form one unit.
  6. 13. anything that has mass and occupies volume
  7. 14. A molecule that has gained or lost one or more electrons from its neutral state and therefore possesses a negative or positive electric charge.
  8. 17. the one who arranged the periodic table elements according to their atomic mass
  9. 19. force multiplied by distance or the amount of energy needed to move a mass against a force.
  10. 20. an ion with a negative electrical charge.
  11. 21. Argon is the name for the element with atomic number 18 and is represented by the symbol Ar
  12. 25. an ion of oxygen with an oxidation state equal to 2- (e.g., iron oxide).
  13. 28. SI unit of pressure equal to the force of 1 Newton per square meter.
  14. 29. involves the emission of energetic particles of an atom
  15. 30. emitted energy in the form of rays, waves, or particles.
  16. 31. any substance that increases the rate of a reaction without itself being consumed.
  17. 32. mass per unit volume.
  18. 34. covalent bonds formed by overlapping of outer orbitals of adjacent atoms.
  19. 36. a standard used for comparison in measurements
  20. 37. an electrical charge, a conserved property of subatomic particles determining their electromagnetic interaction.
  21. 38. amount of matter a substance contains or property of matter that resists acceleration.
  22. 40. A positively charged ion.
  23. 42. outer electron most likely to participate in bond formation or a chemical reaction.
  24. 46. SI unit of energy equal to the kinetic energy of a 1 kg mass moving at 1 m/s.
  25. 47. Metal + Non – Metal
  26. 49. sharing of electron
Down
  1. 2. A substance that is made up of two or more chemically bonded elements.
  2. 4. X-rays are light rays with a wavelength from 0.01 to 1.0 nanometers.
  3. 6. a substance that cannot be subdivided using chemical means; identified by the number of protons in its atoms.
  4. 8. the one responsible for the entirety of chemical phenomena
  5. 10. it is the ability to attract electrons
  6. 11. chemical mass unit equal to 6.022 x 1023 molecules, atoms, or other particles
  7. 12. a precious shiny grayish-white metal, the chemical element of atomic number 47.
  8. 15. equal sharing of electron
  9. 16. chemical bond in which two electron pairs are shared between two atoms.
  10. 18. the mass of a single atom of a chemical element.
  11. 22. a push or pull on a mass, with both magnitude and direction (vector).
  12. 23. class of fat-soluble molecules, also known as oils and fats
  13. 24. state of matter characterized by having neither a defined shape nor defined volume
  14. 26. the force on a mass due to the acceleration of gravity (mass multiplied by acceleration).
  15. 27. crude oil; natural flammable hydrocarbon mixture found in geologic formations.
  16. 28. large molecule made of rings or chains of repeated monomer subunit
  17. 33. particle in the atomic nucleus that has a mass of 1 and charge of 0
  18. 35. energy that flows between matter samples because of a temperature difference.
  19. 39. maximum amount of solute that may be dissolved in a specified solute
  20. 41. the mixture of gases that make up the Earth's atmosphere
  21. 43. Calcium is the name for the element with atomic number 20 and is represented by the symbol Ca.
  22. 44. a chemical link formed between atoms in molecules and molecules and ions in crystals.
  23. 45. a chemical species that accepts electrons or donate protons or hydrogen ions.
  24. 48. Oxygen is the name for the element with atomic number 8 and is represented by the symbol O