Where on the Periodic Table is the atomic number and atomic mass located?

Answer The Periodic Table of Elements is composed of all the known elements of the natural world, listed in order of increasing atomic number. Most charts list each atom in rows of boxes with the element'... Read More »

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What Is the Purpose of an Exhaust Emission System?

Cars, trucks and other vehicles produce exhaust. Exhaust contains multiple air pollutants that have been proven harmful, both to humans and to the environment. Exhaust emission systems are designed... Read More »

What Are the Functions of the Emission Control Valve in Trucks?

Starting in the 1990s, the federal government began requiring new vehicles to integrate sensors and technology to reduce emissions from combustion. These requirements included a number of new contr... Read More »

What is 2G spectrum?

2G (or 2-G) is short for second-generation wireless telephone technology. Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja (now... Read More »

What Is a Light Spectrum?

Visible light is only part of the electromagnetic spectrum, which also includes ultraviolet light, infrared, radios, X-rays and microwaves. The electromagnetic spectrum is a description of energy t... Read More »