Week 6 Vocab Carter Kieffer

12345678910
Across
  1. 6. A substance that cannot be separated or broken down into simpler substances by chemical means.
  2. 7. A period is a horizontal row of the periodic table
  3. 8. A subatomic particle that has a positive charge and that is located in the nucleus of an atom; the number of protons in the nucleus is the atomic number, which determines the identity of an element.
  4. 10. Mass:the mass of an atom of a chemical element expressed in atomic mass units
Down
  1. 1. The periodic table of chemical elements.
  2. 2. number: The number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element.
  3. 3. A subatomic particle that has a negative charge.
  4. 4. A subatomic particle that has no charge and that is located in the nucleus of an atom.
  5. 5. :The smallest unit of an element that maintains the properties of that element.
  6. 8. Table: An arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column or group.
  7. 9. a number of people or things that are located close together or are considered or classed together.