Across
- 3. elements that are poor conductors of heat and electricity
- 7. elements with properties that fall between those of metals and nonmetals
- 9. elements that are good conductors of electric current and heat
Down
- 1. the most abundant element in earth's crust.
- 2. arranged the elements into rows in order of increasing mass so elements with similar properties were in the same column
- 3. elements in group 8A.
- 4. the most abundant metal in earth's crust.
- 5. helps keep your bones and teeth strong.
- 6. elements in group 7A.
- 8. is in most of the compounds in your body.