铁峰顶
铁峰顶 — 化学元素丰度图上，在 Fe（V、Cr、Mn、Fe、Co和Ni）元素邻近的局部极大。
在铁之前的元素进行核融合释放能量，比铁重的元素需要消耗能量才能进行核融合，取代的是以核分裂发布能量。化学元素的恒星核合成因而很正常的产生了铁峰顶。重的元素只有在超新星核合成才会产生，因此在我们邻近的区域有着较多的铁峰顶元素。
Iron peak
中文百科
英语百科
Iron peak 铁峰顶
The iron peak is a local maximum in the vicinity of Fe (V, Cr, Mn, Fe, Co and Ni) on the graph of the abundances of chemical elements, as seen below.
For elements lighter than iron on the periodic table, nuclear fusion releases energy. For iron, and for all of the heavier elements, nuclear fusion consumes energy, but nuclear fission releases it. Chemical elements up to the iron peak are produced in ordinary stellar nucleosynthesis. Heavier elements are produced only during supernova nucleosynthesis. This is why we have more iron peak elements than in its neighbourhood.
- laid on edge course的意思
- laid on end的意思
- laid one on的意思
- Laidon, Loch的意思
- laid on moulding的意思
- laid on the line的意思
- laid on the table的意思
- laid open的意思
- laid our cards on the table的意思
- laid our cards upon the table的意思
- laid our hands on的意思
- laid ourselves open to的意思
- laid ourselves out的意思
- laid out的意思
- laid out on的意思
- laid out on thick的意思
- laid over的意思
- laid paper的意思
- laid paper的意思
- laid pipe的意思
- laidre的意思
- laid, relaid and parlayed的意思
- laidromycin的意思
- laid rope的意思
- laid ropes的意思