Neutrons - atomic mass subtracted by the # of protons (this number can change.Electrons - same thing for protons (this number can termines the charge of the atom).Protons - define the element (the atomic # of an element is the amount of protons there are).Protons are positive, electrons are negative, neutrons are neutral.Protons and neutrons are in nucleus, with electrons outside.

Fun fact: the width of the average human hair is about ONE MILLION carbon atoms!!.

Most of all living things are made out of carbon.

Different pure substances are called elements.

Lots of elements can be in different states of matter (shapeshifters.scary).

Ooh drama, biology is all about chemistry but psychology and many other things are all about biology <33.

Biology is all about chemistry (ik so obsessed with them).

chemistry, computer programming, computer science, economics, and health.

Nvm ignore the last point, chemistry is CLOSELY related to physics and contains lots of math This situation should improve for over 6 million Khan Academy students who are.Chemistry is made up of physics and math?.KHAN ACADEMY AP CHEM <33 ATOMS, COMPOUNDS AND IONS ➜ Introduction to the atom

Khan academy basic chemistry