Chemistry CrossWord

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Across
  1. 5. same numbers of protons(atomic number) but different numbers of neutrons
  2. 7. a mixture in which the individual substances are visible to the naked eye
  3. 14. electron configuration: 1s2 2s2 2p1
  4. 17. electrons fill orbitals starting at the lowest available energy state before filing higher states
  5. 20. Group 1 of the Periodic table
  6. 21. An atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  7. 22. elements 90-103
  8. 23. particle that has no charge and is located in the nucleus
  9. 24. characteristic of a substance that can be observed without changing the substance into another substance
  10. 27. atomic symbol of SodiumChloride
  11. 28. horizontal row of elements in the periodic table
  12. 29. Group that has 7 valence electron
Down
  1. 1. positive charged particle located in the nucleus of an atom
  2. 2. chemical bond formed when electrons are shared
  3. 3. use to hold,mix,and heat liquids
  4. 4. used for protecting your eyes during an experiment
  5. 6. smallest particle of an element
  6. 8. the ability of an atom to attract electrons
  7. 9. element with 8 protons, 8 electrons, and 8 neutrons
  8. 10. negatively charged particle in an atom
  9. 11. chemical bond that involves electrons to be gained or lost
  10. 12. electron configuration: 1s2 2s2 2p6 3s2 3p4
  11. 13. Elements 58-71
  12. 15. English scientist that stated All matter is made of atoms and Atoms are indivisible and indestructible.
  13. 16. Anything that has mass and occupies space
  14. 18. A change in matter which does not alter the chemical properties of the matter
  15. 19. Group that has 8 valence electron
  16. 24. covalent bond in which electrons are shared unequally
  17. 25. Atomic symbol is Ca
  18. 26. pair of electron that does not bond