Learning Path
Question & Answer
Choose the Best Answer
They have only one electron in their outer shell, which can be easily lost.
They are very heavy and sink quickly, causing a violent reaction.
They form stable compounds with water, preventing reaction.
They have a strong attraction to oxygen, making them less reactive with water.
Understanding the Answer
Let's break down why this is correct
Alkali metals have one electron in their outermost shell. Other options are incorrect because People sometimes think heavier metals react faster just because they sink faster, but that is wrong; A misconception is that alkali metals form stable compounds with water, so they wouldn't react.
Key Concepts
Alkali Metals
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Deep Dive: Alkali Metals
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Definition
Alkali metals are a group of elements following the noble gases in the Periodic Table. They exhibit unique physical and chemical properties, including reactivity with water, halogens, and hydrogen. Understanding the properties of alkali metals is essential for predicting their behavior in chemical reactions.
Topic Definition
Alkali metals are a group of elements following the noble gases in the Periodic Table. They exhibit unique physical and chemical properties, including reactivity with water, halogens, and hydrogen. Understanding the properties of alkali metals is essential for predicting their behavior in chemical reactions.
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