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Atomic theory pt.2

TermDefinition
Valence Electrons The electrons farthest from the nucleus ; They are responsible for atoms forming compounds.
Molecule 2 or more atoms chemically combined.
Compound 2 different atoms chemically combined.
Mixture A combination of 2 or more different atoms or molecules that are not chemically combined.
Covalent bond Chemical bond between 2 non metals
Ionic bond Chemical bond between a metal and non metal
Octet rule Elements are stable when their valence shell is full. This can done with 8 or in some cases 2.
Alkali Metals They react quickly with water, And they lose luster quickly. They have 1 valence electron.
Alkali Earth Metals They react with water. They have 2 valence electrons.
Transition Metals They don't react that much. They conduct heat and electricity. They have 2 eletrons
Halogens They are toxic and they react quickly.
Created by: ds65228
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