Foundation of cells: Atoms & (Macro) Molecules Ch2

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11 Terms

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Covalent Bonds

 Are formed when atoms share pairs of electrons

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Ionic bonds

Are the donation of one element to another 

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Valence Shell

The outermost shell that can have up to 8 electrons

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Protons

Positive

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Neutrons

Neutral

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Electrons

Negative

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Nucleus

Made up of protons and neutrons

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Chon(ps)

Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur

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Electronegativity

How strongly an atom will attract electrons to itself

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Polar covalent bond

Electrons are shared unequally which results in positive and negative charge

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Non-Polar covalent bond

Two atoms that equally share electrons