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Questions and Answers
Which group of elements is known as the Alkali Metals?
What is the relationship between reactivity and charge density for the group 2 alkaline earth metals?
What is the main characteristic of the boron family elements in terms of bonding and structure?
What are the two most common allotropes of carbon?
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What is the structure of silicon?
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Study Notes
Group 1 Elements: Alkali Metals
- Alkali Metals are a group of elements that are highly reactive and have a single electron in their outermost energy level.
Reactivity of Group 2 Elements: Alkaline Earth Metals
- Reactivity of Alkaline Earth Metals increases as the charge density of the ion increases, which means as the size of the atom decreases.
- This is because the smaller the atom, the more positive charge is concentrated, resulting in a higher charge density.
Boron Family Elements
- The main characteristic of Boron Family Elements is that they exhibit a range of bonding and structure types, including metallic, ionic, and covalent bonds.
- This is due to the ability of Boron Family Elements to form different types of bonds, resulting in a variety of structures.
Allotropes of Carbon
- The two most common allotropes of carbon are Diamond and Graphite.
- Diamond is a hard, three-dimensional crystal with a rigid structure, while Graphite is a soft, slippery, and layered material.
Structure of Silicon
- Silicon has a diamond-like crystal structure, similar to Diamond, but with a slightly different arrangement of atoms.
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Description
Test your knowledge of the chemistry of main-group elements in Groups 1, 2, 13, and 14. Explore periodic trends, charge density, and characteristics of the Boron and Carbon families. Learn about the Alkali Metals and Alkaline Earth Metals.
