Across
- 3. Anything that has mass and volume
- 4. The smallest unit of an element that has all the properties of the element
- 5. An element that does not conduct electricity or heat and is usually a gas at room temperature
- 8. Symbol The single capital letter or capital letter followed by lowercase letter represents the name of the symbol
- 9. The smallest unit of a compound that has all of the properties of the compound
- 10. Theory Atoms of a given element are identical
- 12. An element or substance that conducts heat and electricity
- 15. A chart that organizes information about all of the known elements according to their properties
Down
- 1. Elements and/or compounds that when put together are unable to react chemically
- 2. Describes how likely an element is to form bonds with other elements
- 6. The region surrounding the nucleus of an atom where the electrons are located
- 7. A substance that cannot be broken down into a simpler substance by ordinary chemical means
- 11. An atom that has gained or lost one or more electrons
- 12. An element that has some properties of a metal and some properties of a nonmetal
- 13. a vertical column on the periodic table
- 14. a horizontal row in the periodic table