Vocabulary Review

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Across
  1. 2. – a vertical column in a periodic table; also called a chemical family
  2. 4. – a mixture in which substances are evenly distributed
  3. 7. – the scientific principle that matter is neither created nor destroyed
  4. 9. - an element that conducts heat and electricity well, is shiny, and can be hammered
  5. 11. – a change that results in the formation of a new substance or substances
  6. 13. – matter made up of two or more substances that are not joined chemically
  7. 17. – the smallest unit of a compound - Made of the same types of atoms.
  8. 18. – a chart that organizes information about all the known elements
  9. 20. – a substance that is produced during a chemical reaction.
  10. 21. – an element that has some properties of both metals and nonmetals
  11. 25. a mixture in which substances are not distributed evenly
  12. 26. - a homogenous mixture in which one substance is completely dissolved into another
  13. 29. – in a solution, the substance that does the dissolving
  14. 30. – a horizontal row in a periodic table
  15. 31. – the tendency of a substance to undergo chemical changes
  16. 32. - a chemical change that is accompanied by a release of heat.
Down
  1. 1. - a positively charged elementary particle that is in the nuclei of the atom.
  2. 3. – a change in a substance that does not change the chemical makeup
  3. 5. – in a solution, the substance that dissolves
  4. 6. - two or more different elements join together chemically.
  5. 8. – a process by which elements and compounds combine to form a new substance
  6. 10. – a substance that is present at the beginning of chemical reaction
  7. 12. - negative charge outside the nucleus of an atom.
  8. 14. - the group in an experiment or study that does not receive treatment
  9. 15. - it is the sum of the protons and neutrons of an atom.
  10. 16. - a chemical change that is accompanied by an absorption of heat.
  11. 19. – a gas that rarely reacts with other elements
  12. 22. – a solid that forms during a chemical reaction that takes place in a solution
  13. 23. - number of protons in the nucleus of each atom of a given element
  14. 24. – particle having no charge, mass slightly greater than that of a proton.
  15. 27. – an atom that has lost or gained electrons and therefore has an electrical charge
  16. 28. the ratio of mass to the volume of a substance