Across
- 3. A horizontal row of elements in the periodic table.
- 4. The weighted average of the masses of all naturally occuring isotopes of an element.
- 6. A one, two, or three letter abbreviation of an element.
- 8. Elements that are listed based on their atomic number.
Down
- 1. An element that has properties of both metals and nonmetals.
- 2. An element that conducts heat and electricity poorly.
- 5. A vertical column of elements in the periodic table.
- 7. Element that is shiny and they conduct heat and energy very well.