Chemistry

Edit Answers
12345678910
Across
  1. 3. the subatomic, positively charged particles in the nucleus of an atom
  2. 4. the temperature at which a solid will change into a liquid
  3. 8. “the basic building blocks of matter”
  4. 9. substance which cannot be broken down into simpler substances
  5. 10. measure of the quantity of matter in an object
Down
  1. 1. the small, dense, central part of an atom containing all the positive charge and virtually all of the atom's mass
  2. 2. gases are all odorless, colorless nonmetals , shells are full of valence electrons.
  3. 5. a column in the periodic table of the chemical elements.
  4. 6. change change in which a substance becomes a different substance with different composition/properties
  5. 7. a horizontal row in which all the elements in that row have valence electrons in the same energy level.
  6. 8. mass the total mass of particles of matter in an atom