Transition Metal: An element with an incomplete d subshell. Elements which have common cations with incomplete d subshells are also considered transition metals. Elements with incomplete f subshells are sometimes called 'inner transition elements'.

 

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Transition Metal: An element with an incomplete d subshell. Elements which have common cations with incomplete d subshells are also considered transition metals. Elements with incomplete f subshells are somet . . . View Full Definition

Phase Transition: Iron phase transitions are at room temperature to 1,670°F (910°C) iron is body-center cubic, 1670°F (910°C) to 2535°F (1388°C) iron is face-center cubic and 2535°F (1390°C) the melting point . . . View Full Definition

Phase Transitions: When metals or metal alloys go from solid to liquid or the reverse, this is a

Precious Metals: Gold, silver, platinum, and palladium, which are used for their intrinsic value or for their value in production. These may be traded either in their physical state or by way of futures and . . . View Full Definition

Nonmetal: A nonmetal is a substance that conducts heat and electricity poorly, is brittle or waxy or gaseous, and cannot be hammered into sheets or drawn into wire. Nonmetals gain electrons easily to . . . View Full Definition

Nickel Metal-Hybrid (NiMH): A type of rechargeable battery that can be recharged many times. Nimh batteries provide sufficient power to run digital cameras and flashes.

Agricultural Market Transition Act (AMTA): Title I of the FAIR Act of 1996. It allows farmers who have participated in the wheat, feed grain, cotton, and rice programs in any one of the 5 years prior to 1996 to enter into 7-year prod . . . View Full Definition

Native Metal: A natural deposit of a metallic element in pure metallic form, neither oxidized nor combined with sulfur or other elements.

Nickel Metal Hydride Battery (NiMH): A rechargeable battery that is capable of holding more power that a NiCd battery and suffers much less from memory effect. It is also typically more expensive than a NiCd battery.

Seismic Transition Zone: A seismic discontinuity, found in all parts of the Earth, at which the velocity increases rapidly with depth: especially the one at 300 to 600 kilometers.