同重元素

例句：

1. 1. The scientists discovered a new type of element that has never been seen before.
   科学家们发现了一种全新的元素，之前从未见过。
2. 2. This element is very rare and valuable for its unique properties.
   这种元素非常稀有且因其独特的性质而宝贵。
3. 3. The element's discovery has sparked excitement among chemists and scientists alike.
   这种元素的发现激发了化学家和科学家的兴奋。