Gabby H.

Ionic Bond

Bond formed by the attraction of two oppositely charged ions

Usually between metals have a positive charge when they bond because they give up electrons and non-metals have a negative charge as they obtain more electrons when bonding

Electrostatic forces (slow moving charges)

anions-negative charge(non-metals)

cations-positive charge(metals)

High melting points, dissolvable in water, conductors, high strength (these characteristics are alike the metallic bond characteristics because both bonds are strong)

Examples: salt-sodium chloride (NaCl), calcium carbonate (CaCO3), baking soda-sodium bicarbonate(NaC2)

Covalent Bond

Bond formed by the sharing of one or more electrons

Usually between two non-metals

Caused by van der Waals forces which are also used in ionic bonds

Low melting point, non-soluble in water, don’t conduct electricity, molecules, weaker bonds than ionic compounds and very often have a stronger scent (caused by weak bonds)

Examples: menthol (C₁₀H₂₀O), water (H20), ammonia (NH3), methane (CH4)

Metallic Bond

Between mobile electrons and fixed positive electrons

Two metals

High conductivity, malleability, luster, high melting points, strength

Electromagnetic forces

Examples: copper, sodium, zinc, lithium, magnesium, iron, calcium,