百度试题 结果1 题目What is the chemical symbol for nitrogen? A. N B. Ni C. Na D. Ne 相关知识点: 试题来源: 解析 a) Sun 反馈 收藏
What is nitrogen's state of matter at room temperature? What temperature scale has zero as its lowest temperature? Which gas among He, Ne, Ar, Kr and Xe has the largest rate of effusion at 25^\circ C? What is the scientific name for natural gas?
An alkali metal with a lower atomic number than chlorine. What is the symbol of an element with Z < 92 that matches this description? How many national cemeteries in the United States? What is the national animal of Antarctica? The Roman numeral XV is equal to what number?
It is identified on the periodic table of elements by the symbol N. Other elements in the group include bismuth, antimony, and arsenic. Nitrogen forms strong bonds with other elements, because its outermost electron shell is lacking three electrons. These bonds make it very stable, which is ...
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His face is almost the international symbol for genius. But we want to go beyond one man and explore the nature of genius itself. Why is it that some people are so much more intelligent or creative than the rest of us? And who are they? In the sciences and arts, those praised as ...
Nitrogen Uses and Properties - Nitrogen is a diatomic gas with atomic number 7 and symbol N. Know the nitrogen atomic number, the atomic mass of nitrogen and atomic weight of nitrogen. Explore the Uses of Nitrogen.
An atomic cation with a charge of +1 has the following electron configuration: (Ar) 4s^2 3d^{10} 4p^1. What is the chemical symbol for the ion? A monatomic ion with a charge of -2 has an electronic configuration of 1s22s22p63s23p64s23d104p6. a. Is this ion a cation or an ...
aLove is what makes people happy 爱是什么使人愉快[translate] a需要我们请他们吃饭吗? 正在翻译,请等待...[translate] aoxides of nitrogen. 氮气氧化物。[translate] a闻起来很臭 正在翻译,请等待...[translate] awhat a man of great determination. 伟大的决心的人。[translate]...
Not only the Great Wall was the Chinese ancient times great project, also was the construction which shared the honor with the Egyptian pyramid.Not only the Great Wall is the China most important historical relics, moreover has become the Chinese nation the symbol.[translate] ...