Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
Which of the following elements is not a member of the alkali metals group?
Which of the following elements is not a member of the alkali metals group?
- Potassium
- Calcium (correct)
- Sodium
- Lithium
What characteristic of alkali metals causes them to be stored in inert liquids?
What characteristic of alkali metals causes them to be stored in inert liquids?
- High density
- Low melting points
- Reactivity with air (correct)
- High melting points
What description applies to alkali metals concerning their physical properties?
What description applies to alkali metals concerning their physical properties?
- Hard and brittle
- Malleable and ductile (correct)
- Soft and heavy
- High density and high melting points
The primary way alkali metals react with water is by releasing which gas?
The primary way alkali metals react with water is by releasing which gas?
Signup and view all the answers
Which property demonstrates that alkali metals are strong reducing agents?
Which property demonstrates that alkali metals are strong reducing agents?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Properties of Alkali Metals - Group 1
- Group 1 elements include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr).
- They have a univalent nature, readily forming +1 ions by losing one electron from each atom.
- Alkali metals are characterized by their strong electropositivity, which allows them to easily lose electrons and form positive ions.
- Highly reactive, these metals are typically found in nature in compounds due to their tendency to react with other elements.
- Alkali metals tarnish quickly when exposed to air, reacting with oxygen or moisture; they are thus stored in inert substances like paraffin oil.
- As effective electron donors, they serve as powerful reducing agents and exhibit excellent thermal and electrical conductivity.
- These metals are malleable and ductile, allowing them to be shaped and drawn into wires.
- Alkali metals are soft with relatively low melting points and densities compared to many other metals.
- They react vigorously with cold water, producing hydrogen gas and forming hydroxides, a characteristic property of this group.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
