tic-tac-toe

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Across
  1. 4. a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero
  2. 6. forms a molecule
  3. 7. a group of atoms bonded together
  4. 8. each of the actual or potential patterns of electron density
  5. 10. degree of consistency measured by the quantity of mass per unit volume
  6. 12. the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended.
  7. 14. a table of the chemical elements arranged in order of atomic number
  8. 16. when a solid material stretches under tensile stress
  9. 17. no electric charge
  10. 19. a thing that is composed of two or more separate elements; a mixture
Down
  1. 1. the positively charged central core of an atom
  2. 2. copper,silver,aluminum,tin
  3. 3. positive energy
  4. 5. steam,helium,air
  5. 7. an element whose properties are intermediate between those of metals and solid nonmetals
  6. 9. water,some soaps,soda,juice
  7. 11. the quality of being toxic or poisonous
  8. 13. negative energy
  9. 15. copper,silver,gold,radium,neon,oxygen,carbon,calcium,titanium
  10. 18. not gas or liquid