In this site we focused on the the areas of science incluod analytical chemisty, general chemistry, inorganic chemistry, organic chemistry, physical chemistry, and spectroscopy.(Online Chemistry Dictionary )

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Identifying isotopes and ions

In this video may be explained and answer of some question about Identifying isotopes and ions from the number of electrons, protons and neutrons, identifying isotope, identifying ions, what are valence electrons

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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

Identifying isotopes and ions