Chemistry Stuff!!!

Matter is stuff Matter is anything with mass and volume like:

Atoms are the smallest (easily undividable) pieces of matter. The protons and neutrons are found in the nucleus (center) of the atom. Atoms consist of three main parts: Protons are positive (+) And very big compared to electrons Neutrons are neutral (They have [0] no charge) And are very big compared to electrons Electrons are negative (-) And are tiny compared to protons and neutrons

Elements Different types of atoms are called elements. Gold is made of atoms with 79 protons Copper is made of atoms with 29 protons

Electrons are negative!!! How do I find out how many protons and electrons these different elements have? Check out the atomic number!!! What’s the atomic number for oxygen? 8 So how many protons does an oxygen atom have? And how many electrons does an oxygen atom have? Protons are positive!!! Electrons are negative!!!

So what about silver? What’s silver’s atomic number? 47 How many protons does it have? How many electrons does it have?

What’s it called when atoms combine? A molecule is made of two or more atoms combined together. Some popular molecules are: Oxygen (O2) Nitrogen (N2) Water (H2O) What’s that number mean?

What’s a compound then? A compound is made of two or more DIFFERENT types of atoms combined. Some righteous compounds are: H2O H2O2 CO2 C6H12O6 What did those numbers mean?

Hmmm…So what is the difference between a molecule and a compound? A molecule is two or more atoms combined. A compound is two or more different atoms combined. Try this: Substance Molecule? Compound? H2O O2 CH4 (methane) C3H8 (propane) Fe2O3 (rust)