Podcast
Questions and Answers
What is produced when group 1 metals react with water?
What is produced when group 1 metals react with water?
- Carbon dioxide and a metal hydroxide
- Oxygen gas and water vapor
- Nitrogen gas and a metal oxide
- Hydrogen gas and a metal hydroxide (correct)
Why are group 1 metals stored in oil?
Why are group 1 metals stored in oil?
- To prevent them from rusting
- To enhance their conductivity
- To prevent them from reacting with oxygen and water vapor (correct)
- To increase their reactivity
How does the reactivity of group 1 metals change as you move down the group?
How does the reactivity of group 1 metals change as you move down the group?
- Reactivity increases due to more protons
- Reactivity increases as the outer electron is farther from the nucleus (correct)
- Reactivity remains constant throughout the group
- Reactivity decreases as the outer electron is harder to lose
What property defines alkali metals?
What property defines alkali metals?
What gas is produced during the reaction of group 1 metals with water?
What gas is produced during the reaction of group 1 metals with water?
Flashcards
Group 1 metal + water reaction
Group 1 metal + water reaction
Group 1 metals react violently with water, producing hydrogen gas and an alkaline solution (metal hydroxide).
Group 1 metal reactivity trend
Group 1 metal reactivity trend
Reactivity of Group 1 metals increases as you go down the group.
Group 1 metal storage
Group 1 metal storage
Group 1 metals are stored in oil to prevent reaction with oxygen and water in the air.
Alkali metal name origin
Alkali metal name origin
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Reactivity increase down group 1
Reactivity increase down group 1
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Study Notes
Alkali Metal Reactions
- Alkali metals (lithium, sodium, potassium) react strongly with water.
- The reaction produces hydrogen gas bubbles.
- A metal hydroxide is also formed (strong alkali).
- Alkali metals are stored in oil to prevent reaction with oxygen and water vapor.
Reactivity Trends
- Reactivity of group 1 metals increases down the group.
- This is because there are more electron energy levels (shells).
- Alkali metals are named this way because they form an alkali solution in water.
Reactivity Explanation
- Atoms become larger as you move down the group.
- The outer electron is farther from the nucleus.
- This makes it easier for the outer electron to be lost.
- This increased ease of loss leads to greater reactivity.
Reaction Product
- The product of the reaction with water is hydrogen gas.
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