Questions and Answers
How many valence electrons do alkali metals have?
1 valence electron
What happens when you go down the alkali metal group?
The reactivity increases
What are the alkali metals?
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
How many valence electrons do alkaline earth metals have?
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Define 'alkaline'.
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Are alkaline earth metals less or more reactive than alkaline metals?
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What are metals good conductors of?
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Metals are ______, ______, and have _____, and _____
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Metalloids have properties of both _________ and __________.
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Metalloids are more brittle than most nonmetallic metals.
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Metalloids are more brittle than metals.
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What are semiconductors of electricity?
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What possess metallic luster?
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What are your nonmetal elements?
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Nonmetals are poor conductors of heat and electricity.
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How many valence electrons do halogens have?
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What elements in their pure form are diatomic molecules?
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How many valence electrons do noble gases have?
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What is found in pure nature? a. Nonmetals b. Noble gases c. Alkali metals d. Earth alkali metals e. None of the above
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Name 3 facts about noble gases.
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What are your noble gases?
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Study Notes
Alkali Metals
- Characterized by having 1 valence electron.
- Reactivity increases down the group.
- Includes elements: Lithium, Sodium, Potassium, Rubidium, Cesium, Francium.
Alkali Earth Metals
- Have 2 valence electrons.
- Considered less reactive than Alkali Metals.
General Properties of Metals
- Good conductors of heat and electricity.
- Exhibit physical properties: Malleable, Ductile, Luster, and high tensile strength.
Metalloids
- Possess properties of both metals and nonmetals.
- Less brittle than nonmetallic metals.
- More brittle than regular metals.
- Serve as semiconductors of electricity and exhibit metallic luster.
Nonmetals
- Include elements: Carbon, Nitrogen, Oxygen, Phosphorus, Sulfur, Selenium.
- Are poor conductors of heat and electricity.
Halogens
- Contain 7 valence electrons.
- Exist as diatomic molecules in their pure form.
Noble Gases
- Have 8 valence electrons, contributing to their stability.
- Found in pure nature, making them odorless, unreactive, and colorless.
- Includes: Helium, Neon, Argon, Krypton, Xenon, Radon, and Ununoctium.
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Description
Test your knowledge of Alkali Metals with these flashcards that cover essential concepts such as valence electrons and reactivity trends. Perfect for students studying chemistry, these concise definitions will help reinforce your understanding of this elemental group.
