Across
- 3. one or two letter code that stand for an element
- 5. a row of elements that have a certain proprties in common
- 6. small number to the right of an element symbol that shows how many atoms of that element
- 9. the basic unit of a chemical element
- 10. number of protons and neutrons
- 11. the ability to combine and to chemically bond with each other
- 13. substaces that are the building blocks of all matter(made of one kind of atom)
- 14. compounds that include Carbon
- 15. a chart where all elements are organized into periods and steps of the periodic table
Down
- 1. the number placed just before the chemical formula;number of destryed
- 2. molecule that is made up of more than one type of element
- 3. a way of describing the number of atoms that make up a molecule or compound
- 4. electrons found in the outermost shell and determine the chemical properties such as reactivity
- 7. high luster, good conductor, malleable, found on the left of periodic table
- 8. compound or element that is the result of a chemical reaction
- 12. number of protons in the nucleus of one ato of an element