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稀土元素(REE)原于结构的特点是原子序数大和电子层结构复杂。这两种特性决定了它们在自然界中含量低(特别是原子序数为奇数的稀土元素),彼此之间的地球化学性质非常相似,经常以一个组共同存在。同时,由于它们原子结构所引起的化学和晶体化学
REE original structure is characterized by a large atomic number and electronic structure of the complex. These two properties determine that they are low in nature (especially rare earth elements with odd atomic numbers) and are very similar in geochemical properties to each other, often co-existing in one group. At the same time, due to their atomic structure caused by chemical and crystalline chemistry