Across
- 2. The atomic number of an element is equal to the number of these subatomic particles found in the nucleus of one atom of that element (7)
- 5. A vertical column on the Periodic Table is called a _____ (5)
- 6. Compounds that have the same molecular formula but different chemical structures are _______ of each other (7)
- 8. This chemist (surname) created the first version of the Periodic Table (9)
- 9. This is a region around an atom's nucleus that may contain zero, one, or two electrons, and can be designated by the letters s, p, d, and f (7)
- 12. A horizontal row on the Periodic Table is called a ______ (6)
- 13. IUPAC and the Royal Society of Chemistry are now agreed that the "American" spelling is the correct one for this non-metallic element (6)
Down
- 1. Two or more forms of a chemical element with the same atomic number but different atomic weights are ________ (it is also the name of the Springfield baseball team) (8)
- 3. This type of attraction between atoms was the answer to practically everything in Standard Grade Chemistry, including why ice is less dense than water (8, 5)
- 4. This element is named for the only person to be awarded Nobel Prizes in two scientific categories (chemistry and physics) (6)
- 6. A charged atom or molecule is called an ___ (3)
- 7. These subatomic particles have a mass of zero and a negative charge (9)
- 10. One of the only two elements that are liquid at standard temperature and pressure (7)
- 11. One of the only two elements that are liquid at standard temperature and pressure (7)