Содержание
- 2. Where are the alkali metals? lithium sodium potassium rubidium caesium francium
- 3. Why are they called the ‘alkali metals’? The alkali metals are so reactive that, as elements,
- 4. What is the electron structure of alkali metals? The alkali metals all have one electron in
- 5. What are the properties of the alkali metals? The characteristic properties of the alkali metals are:
- 6. What is the trend in density? The alkali metals generally become more dense going down the
- 7. What is the trend in melting and boiling point? The melting points and boiling points of
- 8. How do the alkali metals react with oxygen? All alkali metals react with oxygen in the
- 9. What are the word and chemical equations for the reaction that causes sodium to tarnish? What
- 10. How do the alkali metals react with water?
- 11. All the alkali metals react vigorously with water. What does the reaction with water produce? It
- 12. This reaction creates alkaline hydroxide ions. The general equation for the reaction between an alkali metal
- 13. How does lithium react with water? Lithium is the least reactive of the alkali metals. When
- 14. How does sodium react with water? When added to water, sodium fizzes more than lithium, and
- 15. How does potassium react with water? When added to water, the potassium moves across the surface
- 16. How do alkali metals react with water? Which of the alkali metals will react most strongly
- 17. How does electron structure affect reactivity? The reactivity of alkali metals increases going down the group.
- 18. Alkali metals burst into flames when heated and added to chlorine. They form metal chlorides. How
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