氧是地球上最丰富的元素吗?-地江南体育网页版球科学堆栈交换江南电子竞技平台 最近30个来自www.hoelymoley.com 2023 - 04 - 03 - t05:08:33z //www.hoelymoley.com/feeds/question/7644 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/7644 9 氧是地球上最丰富的元素吗? 马修·莱顿 //www.hoelymoley.com/users/5583 2016 - 03 - 07 - t14:43:50z 2018 - 10 - 19 - t21:22:37z 当我还在学校的时候，老师告诉我我们需要氧气才能呼吸，但实际上氧气只占大气成分的一小部分，而氮在大气成分中占的比例最大。

这个快速谷歌搜索提到氧是最丰富的元素。

这怎么能和解?< / p >

 //www.hoelymoley.com/questions/7644/-/7645#7645 12 氧是地球上最丰富的元素吗? 好 //www.hoelymoley.com/users/2570 2016 - 03 - 07 - t16:01:38z 2016 - 03 - 07 - t16:01:38z

两者都是。< / p >

The composition of the atmosphere, crust, mantle, core and bulk earth are all notably different.

The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases.

enter image description here

The bulk composition of the earth by weight is mostly, iron, oxygen, silicon and magnesium, in that order, with all the other elements making up only about 5% of the earth's weight. Most of the earth's iron is in the core, which is about 85% iron. The rest of the earth is dominated by oxygen and silicon, primarily in the form of silicate minerals, which consist of $\ce{SiO4^{4-}}$ tetrahedra linked in different ways and with different cations filling in the gaps.

enter image description here

 //www.hoelymoley.com/questions/7644/-/7649#7649 2 氧气是地球上最丰富的元素吗? jamesqf //www.hoelymoley.com/users/1401 2016 - 03 - 07 - t19:06:49z 2016 - 03 - 07 - t19:06:49z

"这怎么能和解?"两个字:二氧化硅:-)

是的，这很简单，但反映了一个事实，即几乎所有的氧都是以与其他元素的化学结合的形式出现的，而不是以自由氧的形式。地壳中的其他元素也是如此。地幔。< / p >
Baidu
map