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Atomic Theory

The study of atoms part 2

TermDefinition
Alkali Metals 1st Group (family) of elements.Highly reactive with water and have 1 valence electron
Alkaline Earth Metals 2nd Group (family) of elements. Reactive with water and have 2 valence electrons
Transition Metals Found in the center of the PT. Non-reactive metals that do not follow the 'valence electrons' category.
Halogens 7th group of elements. highly reactive with alkali metals and form salts. They have 7 valence electrons.
Nobel/Inert Gases 8th group of elements. VERY NON REACTIVE because they have a full valence shell (cloud). They have 8 valence electrons.
Valence Electron Electrons farthest from the nucleus.
Octet Rule Elements strive to have a full valence shell (8), so they will share with other elements creating bonds. Except for He.
Compound When two or more different elements CHEMICALLY combine.
Conservation Of Mass Matter is never created or destroyed, it is simply recycled.
Covalent Bond Bond that exists between two non-Metal in a compound.
Ionic Bond Bond that exist between a metal and a non-metal in a compound.
Molecule Two or more atoms chemically combined. They can be the same, for example hydrogen will bond with itself.
Created by: ER62473
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