| Across |
| 4. |
elements that have properties of both metals and non-metals |
| 5. |
The charge than an electron has |
| 7. |
The _______number is the same as the number of protons and electrons |
| 8. |
Electrons orbit the nucleus in ______ levels |
| 9. |
There are _______ periods on the periodic table. |
| 11. |
has no charge and is found in the nucleus |
| 13. |
Add the number of protons and neutrons to find the atomic ______. |
|
|
| Down |
| 1. |
the number of _____ is used to determine the atomic number |
| 2. |
The charge that a proton has |
| 3. |
the negatively charged subatomic particle |
| 5. |
where the protons and neutrons are found |
| 6. |
The Noble ______ will not react at all |
| 10. |
The periodic table has 18 ______. |
| 12. |
the overall charge of an atom |
|
