Argon is a chemical element represented by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table (noble gases). Argon is the…

PowerPoint Presentation - a protective covering of earthâs life against solar radiation and excessive heating Atmosphere - a layer of gases (air) at the surface of the earth.…

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National 5 Chemistry is extremely important to the future of food production. As the population of the world increases, more efficient ways of producing foods are required.…

Chemical Bonding Chemical Bonding Based on Lewis Dot Structures 4 Types of bonding IONIC BONDING COVALENT BONDING HYDROGEN BONDING METALLIC BONDING Examples of Lewis Dot…