Chromium
铬
Chromium is a silvery white metal with a bluish tinge. Its strength, corrosion resistance, and high melting point (1830°C) have led to applications in coating other metallic objects.
铬是一种银白色带蓝色色调的金属。其强度、耐腐蚀性和较高的熔点（1830°C）使其被用于对其他金属物体进行镀层。
It has been used to coat the inside of barrels of large artillery pieces because it is able to withstand the hot powder gases. It becomes coated with a thin oxide layer which helps with corrosion protection.
它被用于涂覆大口径火炮炮管内壁，因为它能承受高温火药气体。它会形成一层薄薄的氧化层，有助于防止腐蚀。
Chromium is commonly used to plate brass and steel objects, such as plumbing fixtures.
铬常用于对黄铜和钢制物体进行电镀，例如水龙头配件。
Chromium is used in the production of steel alloys. Stainless steel contains 12-18% chromium and usually about 8% nickel.
铬用于生产钢合金。不锈钢含12-18%的铬，通常含有约8%的镍。
Potassium dichromate is used widely as a bleach for photographic development.
铬酸钾广泛用作显影照片的漂白剂。
Chromium and iron together form the oxide chromite, FeCr2O4. Chromium and lead are found in the mineral crocoite, PbCrO4. Chromium appears with magnesium in the carbonate mineral stichtite
铬和铁一起形成氧化物 chromite，FeCr₂O₄。铬和铅存在于矿物 crocoite 中，化学式为 PbCrO₄。铬与镁一起出现在碳酸盐矿物 stichtite 中。
Chromium is the first element to form an exception to the general order of filling of electron orbitals, filling five 3d states before it fills the second 4s state.
铬是第一个打破电子轨道填充一般顺序的元素，它在填充第二个4s轨道之前，先填充了五个3d轨道。
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