Across
- 3. These metals are reactive but not as reactive as group 1 metals.
- 6. Electrons in the atom's outermost electron shell.
- 8. This group of elements are very reactive nonmetals.
- 10. How many valence electrons do the noble gases have?
Down
- 1. Shiny and soft enough to cut with a knife, these metals start with lithium (Li) and end with francium (Fr). They are also extremely reactive and will burst into flame or even explode on contact with water.
- 2. Colorless, odorless and almost completely nonreactive nonmetals.
- 4. Hard but malleable, shiny, and possessing good conductivity, these elements are what you typically think of when you hear the word metal. Many of the greatest hits of the metal world — including gold, silver, iron and platinum — live here.
- 5. How many valence electrons do the alkali metals have?
- 7. How many valence electrons do the alkaline earth metals have?
- 9. How many valence electrons do the halogens have?
- 11. Do elements in the same group or period have similar properties?
