Chemistry

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Across
  1. 3. the law of ____ of mass says that matter cannot be created nor destroyed; in a chemical reaction, the total mass of the reactants will equal the total mass of the products
  2. 5. when atoms form chemical bonds, they want to fill the outer electron shell to a total of eight electrons to be stable
  3. 7. a specific type of atom
  4. 8. a chemical bond formed between atoms when one atom loses electrons and the other atom gains electrons, forming a positively or negatively charged ion
  5. 9. the building blocks of matter
  6. 11. the number of protons of an element; identifies the element and determines its place on the periodic table
  7. 13. how well a substance (solute) will dissolve into another substance (solvent)
  8. 16. a negatively charged particle found in the area surrounding the nucleus of an atom
  9. 17. the central part of an atom that contains neutrons and protons
  10. 18. a lasting attraction between atoms that forms a molecule or a chemical
  11. 19. a chemical bond formed when atoms share electrons, fulfilling the octet rule and achieving stability
  12. 21. a characteristic of a substance that can be observed without changing its chemical makeup
  13. 22. the weight of the number of protons plus the number of neutrons of an atoms; it can be found on the periodic table
Down
  1. 1. a characteristic of a substance that can only be observed through a chemical change
  2. 2. anything that has mass and takes up space
  3. 4. a positively charged particle found in the nucleus of an atom
  4. 6. the branch of science that investigates the composition and properties of matter and how they interact
  5. 10. a group of two or more atoms joined together
  6. 12. a different form of an element that has the same number of protons but a different number of neutrons
  7. 14. an atom that has either lost or gained electrons, giving it an overall positive or negative charge
  8. 15. a particle with no charge found in the nucleus of an atom
  9. 18. a substance that is made of atoms or molecules that cannot be broken down without changing it into something else
  10. 20. how compact a solid, liquid, or gas is; is equals mass divided by volume