百度试题 结果1 题目5 How many neutrons are present in the atom 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
Oxygen has an atomic mass of 16 amu and an atomic number of 8. How many neutrons are present? How many electrons does einsteinium have? How many protons are in the nucleus? How many shells does californium have? Explore our homework questions and answers library ...
How many inner, outer, and valence electrons are present in an atom of fluorine? 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 i...
How many protons are there in an atom of promethium? How many protons are in an atom of hassium? How many protons, neutrons, and electrons does silicon have? How many protons and neutrons are in magnesium? How many neutrons does europium 151 have?
These particles, made up of protons and neutrons, are large and can only travel a short distance -- in fact, they can be stopped with just a piece of paper or even your skin. However, inhalation or ingestion of alpha particles can be very dangerous. Once inside your body, alpha ...
Many of these trees and shrubs are endemic – found in the matorral and nowhere else, as are some of the animals that depend on the vegetation for sustenance, making this region a “biodiversity hotspot”. Humans enjoy its benign climate as well, which is why most of Chile’s population ...
In the process, heat energy is released and there are three spare neutrons left over (4). The neutrons can go on to react with more uranium-235 atoms (5) in a hugely energetic chain reaction. Other fission reactors are possible when a neutron hits uranium-235, producing either two or ...
Consult the Periodic Table of the Elements for the type of atom you are going to represent in a Bohr diagram. Write down its atomic number and mass number. The atomic number is the number of protons, and the mass number is the number of protons and neutrons. The number of electrons is...
What two pieces of information do you need from the periodic table to help you determine the number of neutrons within an atom? How many grams of glucose are needed to prepare 500 mL of a 1.5 M glucose solution? 1. What is the unit of temperature? 2. Who was Count Ru...
Annexins are a family of soluble proteins that bind to acidic phospholipids such as phosphatidylserine in a calcium-dependent manner. The archetypical member of the annexin family is annexin A5. For many years, its function remained unknown despite the availability of a high-resolution structure. ...