Podcast
Questions and Answers
Which element has the atomic number 17?
Which element has the atomic number 17?
- Chlorine (correct)
- Boron
- Fluorine
- Bromine
Which element has the highest atomic weight?
Which element has the highest atomic weight?
- Platinum
- Barium (correct)
- Mercury
- Molybdenum
Which element has a density of solid, 20°C, approximately 7.87 g/cm³?
Which element has a density of solid, 20°C, approximately 7.87 g/cm³?
- Tungsten
- Gold
- Sulfur
- Silver (correct)
Which element has a melting point of approximately 1538°C?
Which element has a melting point of approximately 1538°C?
Which element has a crystal structure, 20°C, of BCC (Body-Centered Cubic)?
Which element has a crystal structure, 20°C, of BCC (Body-Centered Cubic)?
Which type of material is classified based on the regularity of atomic arrangement?
Which type of material is classified based on the regularity of atomic arrangement?
What is the defining characteristic of a crystalline material?
What is the defining characteristic of a crystalline material?
Which materials form crystalline structures under normal solidification conditions?
Which materials form crystalline structures under normal solidification conditions?
What do some of the properties of crystalline solids depend on?
What do some of the properties of crystalline solids depend on?
What is the characteristic of noncrystalline or amorphous materials?
What is the characteristic of noncrystalline or amorphous materials?
Study Notes
Element Identification
- Chlorine has an atomic number of 17.
Element Properties
- The element with the highest atomic weight is not specified, but it is Francium (Fr) in the periodic table.
- The element with a density of solid, 20°C, approximately 7.87 g/cm³ is Iron (Fe).
Crystal Structure and Properties
- The element with a melting point of approximately 1538°C is Tungsten (W).
- Iron (Fe) has a crystal structure, 20°C, of BCC (Body-Centered Cubic).
Crystalline Materials
- Crystalline materials are classified based on the regularity of atomic arrangement.
- The defining characteristic of a crystalline material is the regular and repeating pattern of atoms.
- Metals, including Iron (Fe), form crystalline structures under normal solidification conditions.
- Some properties of crystalline solids depend on the arrangement of atoms in the crystal lattice.
Noncrystalline Materials
- The characteristic of noncrystalline or amorphous materials is the lack of a regular and repeating pattern of atoms.
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Description
Test your knowledge of the characteristics of selected elements with this quiz. Identify the element symbol and atomic number for each element listed, including aluminum, argon, barium, beryllium, and more.
