百度试题 结果1 题目37 How many neutrons are in a nucleus of the nuclide $$ _ { 1 7 } ^ { 3 7 } $$Cl? E A 17 B 20 C 37 D 54 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目3 How many neutrons are present in the atom $$ _ { 2 1 } ^ { 4 5 } $$X? B A 21 B 24 C. 45 D 66 相关知识点: 试题来源: 解析 B 反馈 收藏
How Many Neutrons and Protons Can Get Along? Maybe 7,000Clara Moskowitz, SPACE.com
How Many Neutrons? The difference between isotopes of an element depends on the number of neutrons. To find the number of neutrons in an isotope, find the mass number of the isotope and the atomic number. The atomic number, or number of protons, is found on the Periodic Table. The ...
Number of electrons is equal to atomic number Z . Number of neutrons = Mass number (A) - Atomic number (Z).
百度试题 结果1 题目5 How many neutrons are present in the atom $$ _ { 2 1 } ^ { 4 5 } $$X? A 21 B 24 C 45 D 66 相关知识点: 试题来源: 解析 B 反馈 收藏
How many protons and neutrons are present in the following nuclei ? (i)126C(ii)5626Fe (iii)8838Sr(iv)23892U. View Solution How many electrons, protons and neutrons are there in a 6 gm of.6C12. View Solution select the point of isotones from the following nuclei.12Mg24,.1H3,.2He4...
How many protons, neutrons, and electrons are in 1224Mg atom/ion? Electron:A particle is represented as an electron and this particle contains approximately -1.60\times 10}^{-19 coulombs of electric charge. This is a subatomic particle and a neutral atom contains a similar number ...
How many neutrons does aluminum have? How many atoms are in 2 Fe? The compound Fe2O3 contains how many atoms? How many atoms are present in a copper penny with a mass of 2.501 grams? How many atoms are in CuSO4? Find the mass of 10 billion aluminum atoms. Round your answer to one...
A pair of sunglasses seems so simple -- it's two pieces of tinted glass or plastic in some sort of plastic or metal frame. How much more straightforward can something get? It turns out that there are many different things you can do with two pieces of glass, and these things can have...