Across
- 3. where_metalloids_are_located
- 4. Odorless_and_colourless.
- 8. mass_of_an_atom
- 12. "t"_resembles_"+"
- 15. Rows.
- 16. A_group_of_things.
- 17. elements_on_the_right_of_the_table
- 18. charged electrons
Down
- 1. elements_on_the_left_of_the_periodic_table.
- 2. between_metals_and_nonmetals.
- 5. Way_of_writing_very_large_numbers.
- 6. a_full_shell
- 7. outermost_electrons.
- 9. amount_of_positivity_in_an_atom.
- 10. a_burrowing_creature's_mass
- 11. Columns.
- 13. negatively_charged_ion.
- 14. salt-producing