Argon
Argon is a chemical element with the symbol Ar and atomic number 18. It belongs to the noble gas group in the periodic table. Here's a study guide to understand more about argon:
Properties of Argon
- Atomic number: 18
- Atomic symbol: Ar
- Atomic mass: 39.948 amu
- Boiling point: -185.7°C
- Melting point: -189.3°C
- Density: 1.784 g/L
- Colorless, odorless, and non-reactive
Occurrence and Production
Argon is the third most abundant gas in the Earth's atmosphere, comprising about 0.93% of the air. It is produced commercially by the fractional distillation of liquid air.
Uses of Argon
Argon has various applications, including:
- Used in electric light bulbs to prevent the filament from oxidizing
- Used in welding to displace air and prevent oxidation of the metal being welded
- Used in the production of titanium and other reactive elements
- Used in the semiconductor industry for growing crystals of silicon and germanium
Study Tips for Argon
To understand argon better, consider the following study tips:
.◂Physics Worksheets and Study Guides High School. Sound
The resources above cover the following skills:
PHYSICS
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