Grade 7 Semester 2 Exam - Unit 7

Edit Answers
1234567891011121314151617
Across
  1. 5. The subatomic particles that have no charge.
  2. 8. A region around the nucleus of an atom where electrons are likely to be found.
  3. 10. The subatomic particles with a positive charge.
  4. 13. Elements that have some properties of metals and some properties of nonmetals.
  5. 14. A chemical reaction in which energy is released to the surroundings.
  6. 15. elements that are shiny and conduct heat and electricity well.
  7. 17. The protons and neutrons are found in the _____ of an atom. They have about the same mass.
Down
  1. 1. The subatomic particles with a negative charge.
  2. 2. The _____ are found in the area around the nucleus and have almost no mass.
  3. 3. The smallest unit of an element that maintains the properties of that element.
  4. 4. Elements that are poor conductors of heat and electricity. Most are dull and brittle.
  5. 6. A small, dense, center that has a positive charge and is surrounded by electrons.
  6. 7. A horizontal row of elements in the periodic table.
  7. 9. A chemical reaction that requires energy.
  8. 10. A measure of how acidic or basic a solution is.
  9. 11. The substance that is being dissolved in a solution.
  10. 12. A vertical column of elements in the periodic table.
  11. 16. The substance in a solution that does the dissolving.