Across
- 2. how many protons do lithium have
- 4. who came up with atom structure
- 5. what orbits the electron shell
- 8. what atom has negative charge
- 10. where rutherford was born
- 11. who did the gold foil experiment
- 12. which group does the alkali metals belong
- 14. how many protons are there in berylium
- 15. has proton and neutron
Down
- 1. what atom has positive charge
- 3. has 5 protons and the atomic number is 11
- 5. how many protons does oxygen have
- 6. how much atomic number have the sodium
- 7. what is the first element of the periodic table
- 9. what atom has neutral charge
- 13. how many protons does hydrogen have
- 16. how many electrons are there in atom of carbon