| A | B |
| Where are the protons located? | In the nucleus of the atom |
| Where are the neutrons located? | In the nucleus of the atom |
| Where are the electrons located? | In levels (rings) around the nucleus |
| How many electrons can go in the first level? | 2 |
| How many electrons can go in the 2nd level? | 8 |
| How are elements arranged on the periodic table | by the number of protons in the nucleus |
| What does the atomic number of an element tell us? | The number of protons, neutrons, and electrons in an atom |
| What is matter made of only one type of atom? | An element |
| Is Hydrogen an element, compound, or mixture? | Element |
| What are two or more elements combined chemically? | A compound |
| Is a ruby an element, compound, or mixture? | Mixture |
| What is matter that is not pure and can be separated fairly easily? | A mixture |
| Are rocks an element, compound, or mixture? | A mixture |
| If sodium is number 11 on the periodic table, how many protons does it have? | 11 |
| If Fluorine is number 9 on the periodic table, how many protons does it have? | 9 |
| What type of matter is chemically combined and CAN NOT be separated? | Compounds |
| What is the purest from of matter | Elements |
| What type of matter is physically changed and CAN be separated? | Mixtures |
| What type of matter are Carbon and Neon? | Elements |
| What type of matter is water? | A compound |