The Surprising Nature of Chromium (Cr)????

Elemental analyses of this deteriorated wood showed high levels of copper, chromium, iron, and lead, suggesting that a caustic chemical spill had occurred. They included acupuncture, hypnosis, aroma therapy, and chromium-enhanced dietary supplements.

Chromium is a chemical element; it has symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. [10] Chromium is valued for its high corrosion resistance and hardness.

Chromium is an essential trace element for humans because it helps us to use glucose. However, it is poisonous in excess. We take in about 1 milligram a day. Foods such as brewer’s yeast, wheat germ and kidney are rich in chromium. Chromium is found

Periodic Table Chromium Chromium is a chemical element with symbol Cr and atomic number 24. Classified as a transition metal, Chromium is a solid at 25°C (room temperature).

鉻（Chromium）是一種具有銀白色光澤的金屬，無臭、無味，無毒，化學性質很穩定，有延展性，含雜質時硬而脆。 熔點1857±20℃，沸點2672°C，密度單晶為7.22克/厘米3，多晶為7.14克/厘米3。 它的化學符號是Cr，原子序數24，在6族元素中排行首位，原子量51.9961，化合價+2、+3和+6。 電離能為6.766電子伏特。 鉻的名稱來自希臘文Chroma，意為顏色。 因為這種元素以多種不同顏色的化合物存在，故被稱為“多彩的元素”。 金屬鉻在酸