Across
- 1. It is the simplest whole number ratio of a compound.
- 4. The measuring system that uses inches, quartz,feet, etc.
- 6. It is a table of all the elements, arranged by their atomic number.
- 8. It is the first element in the periodic table.
- 9. It is the rounded-off atomic weight of an element.
- 12. One unit of this is equal to Avogadro's number.
- 13. 6.022x10^23
- 15. He is the scientist who made "6.022x10^23"
- 16. It is a method of converting a unit to another unit in an organized manner.
- 17. It is a substance composed of two or more chemical elements.
- 18. It is a symbolic representation of all the elements present in a compound.
Down
- 2. It is the percentage of an element present in a compound.
- 3. The measuring system that uses meters, grams, liters, etc.
- 5. It is a pure substance.
- 7. It is the abbreviation of an element used in the periodic table.
- 10. It is the simplest whole-number multiple of a compound
- 11. It is the total atomic mass present in a compound.
- 13. It is the smallest unit of matter.
- 14. It is the average mass of an atom found in the periodic table.