| Question | Answer |
| The smallest piece of a substance that is still that substance? | atom
|
Has a positive charge? | proton
| Has a negative charge? | electron
| Has no (neutral) charge? | neutron
| The center of an atom that contains protons and neutrons? | nucleus
| A table that organizes all of the elements by like characteristics? | Periodic Table of Elements
| The basic building material of all matter? | Elements
| What does the number in the top right corner of an element stand? for | Atomic Number
| Atomic mass-Atomic number= | The number of neutrons in an element
| What does the symbol O stand for? | Oxygen
| What does they symbol He stand for? | Helium
| Most of the elements on the Periodic Table are___________? | Metals
| An example of a substance is__________? | Water H2O
| How did Mendeleyev predict the existence of elements that have not yet been discovered? | He looked for gaps in the table and predicted the missing elements
| Finish | Finish |
