Each atom has a definite number of neutrons, protons, and electrons. The number of protons in the nucleus is called the atomic number, Z, and this number defines the chemical element that describes the atom. In a neutral atom, the number of electrons is equal to Z, and these orbit the...
Anything that has mass and volume. Matter. Matter & Atoms Unit 2. Matter Matter – anything that has mass and takes up space. Matter is made up of MUCH smaller particles known as atoms. 1) What is the smallest unit of matter? An atom What is an atom made of? Subatomic particles prot...
Rather, it measures the mass-to-charge ratio (m/z) in thomson (Th) of ions from which the relative mass (m) can be derived if the charge number of the ion (z) is known. The relative mass (m) is a dimensionless number which is defined as the mass of an atom, a molecule or ...
Where is the density (mass) of an atom?outside the nucleusinside and outside of the nucleusin the nucleus This problem has been solved! You'll get a detailed solution that helps you learn core concepts.See AnswerSee AnswerQuestion: Where is the density (...
Chromium，mass number = 52
If the atomic mass number is composed of neutron and protons then surely the amu of an atom should be a whole number as neutrons and protons both have a mass of +1. For example, should not sodium have an amu of 23? Why does chlorine have an amu of 35.45?
听力原文: What is an atom? The modern view of an atom has come from many fields of chemistry and physics. The idea of an atom came from ancient Greek science and philosophy and from the results of 18th and 19th century chemistry. It include..
The atomic weight of an atom, or the molecular weight of a molecule, is its mass relative to that ofa___ atom. This is essentially equal to the number of protons plus neutrons that the atom or molecule contains. A oxygen B hydrogen C helium D carbon 相关知识点: 试题来源: 解析 B ...
The two subatomic particles that make up the mass of an atom are protons and neutrons. Each of these has a mass of one AMU, or atomic mass unit... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our expe...
There is a clinical need for conceptually new treatments that target the excessive activation of inflammatory pathways during systemic infection. Thrombin-derived C-terminal peptides (TCPs) are endogenous anti-infective immunomodulators interfering with