百度试题 结果1 题目The element fluorine is a___. A. metal B. non-metal C. metalloid D. noble gas 相关知识点: 试题来源: 解析 B。氟是一种非金属元素。氟具有非金属的特性,不是金属、类金属或稀有气体。反馈 收藏
What is the noble gas configuration of Lawrencium? How are noble gases different from most other natural elements? How many protons does argon have? What is the noble gas configuration of actinium? What state of matter is argon? Why does Fluorine have a valence of -1? How do you use th...
Why is fluorine highly reactive? What are the technological benefits of chemistry? Why was Bohr's theory for the hydrogen atom initially accepted, and why was it ultimately discarded? Why does the atomic radii decrease as you go across a row?
Neon has no radioactivity. It has three stable isotopes and 17 radioactive isotopes, though. Fortunately, they decompose quickly and cause little harm. Most radioactive isotopes survive for a fraction of a second or a minute. Usually, light radioactive neon isotopes disintegrate into fluorine, and...
that of magnesium is 2 as it can lose 2 electrons easily and also attain stability. furthermore, it is not only determined when an atom loses an electron. for example, fluorine has 7 electrons in its outermost orbital. it is hard to lose 7 electrons and so it completes its octet...
Halogens are the elements in light purple. The halogen column is the only column to contain elements that are solids, liquids and gases. Fluorine is a yellow gas, bromine is a red liquid, and iodine is a purple solid. Halogens react with group 1 metals to create compounds. One example ...
Group 7A (or VIIA) of the periodic table are the halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The name "halogen" means "salt former", derived from the Greek words halo- ("salt") and -gen ("formation"). ...
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An orbital is a wave function that statistically describes the areas where the electrons traveling around the nucleus of an atom are most likely to be found. Answer and Explanation: Learn more about this topic: Electron Configuration | Noble Gas & Orbital Notation ...
According to the invention, a fluorine gas mixture having a proportion of more than 25% up to and including 40% of fluorine, a proportion of 1% to 50% of nitrogen and a proportion of 30% up to and including 60% of a noble gas is used for etching. In addition, the invention ...