Terbium

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Terbium

158.92534(2)
	Tb
65
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶ 4d¹⁰5s²5p⁶4f⁹6s²

[ ? ]

Lanthanide:

Properties:

Lustrous, silver-gray, malleable and ductile metal.

Terbium is a chemical element, having the chemical symbol Tb. Its atomic number (the number of protons) is 65. It has a standard atomic weight of 158.9253 g•mol⁻¹ and is a solid in its elemental form.

Terbium is considered a member of the "Lanthanide" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 3,230 °C and a melting point of 1,356 °C.