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? 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 ...
How Many Neutrons and Protons Can Get Along? Maybe 7,000Clara Moskowitz, SPACE.com
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 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,.11Na23. View Solution How many electrons, protons and neutrons are present in each of the following ?
Neutrons and protons have comparable mass, with their quantities being the basis for the atom's mass number. The electrons are not considered in this calculation because a single electron mass is extremely small, relative to a single proton or neutron....
How many protons, neutrons, and electrons are in the following element? What element does the symbol represent? {eq}\rm ^{32}_{16} X {/eq} Subatomic Particles: Subatomic particles make up the structure of an atom. These include protons, neutrons, an...
How many protons, neutrons, and electrons does the chlorite polyatomic ion have? How many valence electrons does the below atom have? arsenic, Z = 33 How many total valence electrons are in AlCl3? How many ions of each type (cation, anion) are in L i 2 O ? How many core electrons ...