Chemistry

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Solute, Solvent & Solution

Solute: Dissolved solid

Solvent: The liquid in which a solid dissolves

Solution: A liquid that contains a dissolved solid

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Mass Number: Total number of protons and neutrons in a nucleus

Atomic Number: Number of protons of an atom

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Bonding

Ionic: Give electron/s to another -- Metal & Non-Metal

Covalent: Share electron/s -- Non-Metal only

Metallic: Delocalise electrons -- Metal only

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Ions

Positive: Cations -- Group 1/2 mainly

Negative: Anions -- Group 7 mainly

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Dot & Cross Diagram

Dots repersent Non-Metals

Crosses repersent Metals

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State Symbols

(l) = pure liquids

(aq) = aqueous solutions (substances dissolved in water)