| Halogens | | Group 17 elements and have 7 electrons in its outer shell |
| Alkali metals | | Determined by the finding the distance between the nuclei of two touching atoms, and then halving that distance |
| Periodic Table | | Published a list of all the known elements in 1862 |
| Dmitri Mendeleev | | Arranged the elements according to increasing atomic numbers |
| Electron Configuration | | These type of elements have these properties: luster, good conductors of heat and electricity, typically solid at room temperature, and bendable |
| Nonmetals | | The process of making an atom into an ion is called |
| Periods | | Rows of elements that goes left to right |
| Octet Rule | | All the elements of upper right corner of the Periodic Table (including Hydrogen) |
| Ionization | | This element is in coins |
| Radius | | An exception in the Periodic Table. There is more of this in the universe than any other element |
| Alkali earth metals | | Chemist who rearranged the periodic table by placing the lanthanide/actinide series at the bottom of the table. |
| Noble gases | | Outermost electrons in an atom |
| Moseley | | A measure of the ability of an atom in a chemic compound to attract electrons |
| Metalloids | | in group 18 elements and have 8 electrons in its outer shell |
| Copper | | The arrangement of electrons within an atom |
| Hydrogen | | A big grid that contains elements |
| Potassium | | Father of the Periodic Table |
| Metals | | This element is in bananas |
| Electronegativity | | Stinky-smelling substances inside the volcano |
| Transition metals | | Groups 1 elements |
| Helium | | Elements in groups 3-12 |
| Sulfur | | These elements make good semiconductors and are located along the diagonal line between the metals |
| Valence electrons | | This element is inside balloons |
| Alexandre Beguyer de Chancourtois | | Group 2 Elements |
| Glenn Seaborg | | Atoms have a desire to gain, lose or share electrons so they can have eight electrons |