CHEMISTRY SHENANIGANS

- Dmitri Mendeleev started organizing every known element and is credited with creating the first real periodic table of elements
- he sawa pattern and left spaces in the table for elements that were undiscovered

- there are 118 elements on the Periodic Table
- 7 periods and 18 columns
- metals on the left and non-metals are on the right
- elements with similar properties are in the same vertical column
- Atomic Number: Number of protons of the nucleus of each atom of an element
- Atomic Mass: Mass of an average atom of an element (tends to increase along with atomic number)
- Ion charge: Electric charge that forms on an atom when it gains or loses electrons