Dylan Trieu

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Across
  1. 4. a chemical element that forms a simple substance
  2. 6. has more protons than electrons
  3. 8. A substance with high electrical conductivity, luster, and malleability
  4. 9. decimal number between 1 and 10
  5. 11. has more electrons than protons
  6. 13. have similarities in the electronic configuration
  7. 15. a standard scientific unit for measuring
  8. 16. is a chemical element that mostly lacks the characteristics of a metal
Down
  1. 1. noble gases are the chemical elements in group 18 of the periodic table
  2. 2. mass is the mass of all the atoms in a molecule in grams per mole.
  3. 3. electron are electrons in the outermost shell of the atom
  4. 5. mass is the average mass of atoms of an element
  5. 7. A period in the periodic table is a row of chemical elements.
  6. 9. indicates the position of the metalloids in the Periodic Table.
  7. 10. is an atom or molecule that has a net electrical charge.
  8. 11. number the number of protons in the nucleus of an atom
  9. 12. the eight-electron arrangement in the outer electron shell of the noble-gas atoms
  10. 14. are five non-metallic elements found in group 17 of the periodic table