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Elements are arranged in the periodic table based on their atomic number, which increases from left to right and top to bottom. Within this arrangement, elements are categorized into groups or families with similar chemical properties. These properties largely depend on the number of electrons in the group shell. For instance, oxygen, sulfur, and selenium belong to the same group, known as oxygen group or chalcogens, because they all have six electrons in their outermost shell.

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Molded fiberglass grating is available in various thicknesses, mesh patterns and dimensional sizes. Square mesh patterns enable the cutting of the panels efficiently, to accommodate a variety of floor layouts, while reducing the waste to minimal. Molded fiberglass mesh in rectangular shape is mostly used for trench covers in many industrial designs and is also a preferred grating option for walkways. The optional grit-top walking surfaces of fiberglass grating provide skid-resistance for the safety of the workers as well. The design of fiberglass grating is to ensure its reliability, in the most challenging conditions.

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