Across
- 4. Element with the atomic number 79
- 6. Charge on a metal ion.
- 8. The columns of the periodic table are known as...
- 9. Type of bond formed between a metal and a non-metal.
- 11. Electrons fill these starting from two in the first, then eight in the second and eight in the third.
- 13. Neutrally charged sub-atomic particles.
- 14. Type of bond formed between two metals.
- 15. Element who's electron configuration is the same as a sodium ion.
Down
- 1. Russian chemist who derived the periodic table.
- 2. The rows of the periodic table are known as...
- 3. Sub-atomic particles who's number determines the element.
- 5. These types of elements tend to gain electrons to get a full outer shell.
- 7. Atoms of the same element with different numbers of neutrons.
- 8. These elements have one electron in their outer shell.
- 10. An atom or group of atoms with a positive or negative charge.
- 12. Type of bond formed between two non-metals.