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