Across
- 3. Ai stands for
- 7. The elements on the periodic table are organised depending on this
- 8. There are more than a hundred substances shown in the periodic table, which cannot be broken into any smaller parts
Down
- 1. The elements are arranged by atomic ____
- 2. Group 1 metals
- 3. The smallest part of a chemical element
- 4. Two or more atoms chemically joined together
- 5. Most active nonmetals
- 6. Nonmetals tend to form _____ ions