Across
- 3. smallest unit of an element that can maintain the properties of that element
- 4. A substance that has definite physical and chemical properties; stands alone
- 6. Organized chart of the elements found on earth based on their properties, chemical symbol, and classification (metals, nonmetals, metalloids)
- 7. Scientist credited with organizing the modern periodic table by properties of known elements
Down
- 1. abbreviation that represents an element on the periodic table; 1st letter is always capitalized; any extra characters are lower case; ex: H, Ne
- 2. A pure substance composed of 2 or more elements that are chemically combined.
- 5. pure substance that cannot be separated into a simpler substance by physical means.