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28.1.17

Atomic number, mass number, and isotopes


In this video may be explained and answer of some question about Atomic number, mass number, and isotopes, How to use the atomic number and the mass number to represent different isotopes, isotope definition, define isotope, what is an isotope, what are isotopes, atomic mass number definition, what does atomic number mean, what does the atomic number tell you, how do you find the number of neutrons, how to find the number of neutron, ect....


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Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons


How to use the atomic number and the mass number to represent different isotopes
Source: khanacademy.org