Introduction to chemistry
A major picture perspective of science and why it is captivating. How science identifies with math and different sciences.
They think of scientists working on a bench with the different vials of different chemicals.
They might think of a mad scientist. Some of them boiling and changing colors. They might associate chemistry with chemical equations. Thinking about how different things will react together to form other things.They might think about models of the different molecules that can be depicted different ways.They might associate it with the periodic table of elements. And all of these things are a big part of chemistry.
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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.
Elements and atoms
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...
Atomic weight and atomic mass
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.
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
Source: khanacademy.org