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Elements

• 141
• WebElements: Europium
• Extensive information on history, uses, occurrence, compounds, and properties.

• 142
• Wikipedia: Europium
• Properties of the element, including its history, applications, and characteristics.

• 143
• ChemicalElements.com: Fermium
• Basic information, diagram of atomic structure, and facts.

• 144
• It's Elemental: Fermium
• Basic physical and historical information.

• 145
• ChemicalElements.com: Fluorine
• Basic information, atomic structure, and table of isotopes.

• 146
• It's Elemental: Fluorine
• Basic physical and historical information.

• 147
• Wikipedia: Fluorine
• Properties of the element, including its history, applications, and characteristics.

• 148
• ChemicalElements.com: Francium
• Basic information, atomic structure, and isotopes table.

• 149
• It's Elemental: Francium
• Basic physical and historical information.

• 150
• Wikipedia: Francium
• Properties of the element, including its history and characteristics.

• 151
• ChemicalElements.com: Gadolinium
• Basic information, atomic structure, and isotopes.

• 152
• It's Elemental: Gadolinium
• Basic physical and historical information.

• 153
• Wikipedia: Gadolinium
• Properties of the element, including its history, applications, and characteristics.

• 154
• ChemicalElements.com: Gallium
• Basic information, atomic structure, and isotopes.

• 155
• It's Elemental: Gallium
• Basic physical and historical information.

• 156
• USGS Minerals Information: Gallium
• Statistics and information on the worldwide supply, demand, and flow of the element. [PDF]

• 157
• WebElements: Gallium
• Information on uses, occurrence, compounds, and properties of the element.

• 158
• Wikipedia: Gallium
• Properties of the element, including its history, applications, and characteristics.

• 159
• ChemicalElements.com: Germanium
• Basic information, atomic structure, and isotopes.

• 160
• It's Elemental: Germanium
• Basic physical and historical information.