Across
- 3. A vertical column of elements in the periodic table
- 5. An arrangement of the elements in order of their atomic number
- 7. A one-, two-, or three-letter abbreviation of the name of an element.
- 8. An element that has properties of both metals and nonmetals.
Down
- 1. The weighted average of the masses of all naturally occurring isotopes of an element.
- 2. An element that conducts heat and electricity poorly.
- 4. An element that is shiny and that conducts heat and electricity well.
- 6. a horizontal row of elements in the periodic table.