A. the number of protons in an atom B. the number of neutrons in an atom C. the number of electrons in an atom D. the total number of particles in an atom 相关知识点: 试题来源: 解析 A。元素的原子序数告诉我们一个原子中的质子数。原子序数等于质子数,选项 B 中子数不能由原子序数确...
Conventional wisdom tells us there are three dimensions: height, width and depth. Time is occasionally called the fourth dimension, and we can only go in one direction. String Theory holds that there are more dimensions that we can't see. They are at a subatomic size that not even our bes...
What is the atomic number for tellurium?Question:What is the atomic number for tellurium?Tellurium:Tellurium was first discovered by a mining inspector and chemistry hobbyist in 1782. Franz Joseph Muller von Reichenstein found the element while inspecting mines. While he could not isolate the elem...
Calculate the number of neutrons in a bromine nucleus, which has a radius of approximately 5.38 x 10-15 m. The atomic number of carbon is 6, the atomic number of chlorine is 17, and the atomic number of bromine is 35. What is the atomic number of thallium?
解析 首先句子后面是作定语的,由主句可以知道,修饰的是主语element.因为atoms是原子的意思,对于元素来说,逻辑关系自然是“元素里的原子”,所以element和atoms具有从属关系,用whose(注意啦!在定语从句表示从属关系的时候,关系词whose不仅仅适用于人,也可以适用于物)...
A. The number of protons B. The number of neutrons C. The number of electrons D. The sum of protons and neutrons 相关知识点: 试题来源: 解析 A。原子序数由质子数决定。选项 A 正确,原子序数等于质子数。选项 B 中子数不能决定原子序数。选项 C 电子数在原子呈电中性时等于质子数,但不是决定原...
Quantum theory provides an extremely accurate description of fundamental processes in physics. It thus seems likely that the theory is applicable beyond the, mostly microscopic, domain in which it has been tested experimentally. Here, we propose a Gedank
The Number/Rhyme technique is a very simple way of remembering lists in order. It is an example of a peg system – a system where information is "pegged" to a known sequence (here the numbers one to ten) to create pegwords. By doing this you ensure that you do not forget any facts...
More commonly, the isotope symbol already tells you the atomic number. For example, if the symbol is written as146C, the number "6" is listed. The atomic number is the smaller of the two numbers in the symbol. It is typically located as a subscript to the left of the element symbol....
The atomic number for californium is 98. This is the number of protons in the nucleus of any californium atom, regardless of the isotope. Californium,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...