periodic table
Across
- 3. located in the 17th group in the periodic table
- 5. period i am in
- 7. first group fourth period
- 12. metals that include iron, gold, and platinum
- 13. the first metals in the alkali metal familiy
- 14. element has 26 protons
- 15. has 2 protons
- 18. the center of the atom
- 20. every element in the second group
- 22. vertical columns on a periodic table
- 23. shows the amount of protons in the element
- 25. horizontal column on a periodic table
Down
- 1. has the atomic number of 15
- 2. belongs on the electron shell
- 4. the last group in the periodic table
- 6. a element that has only 2 protons
- 8. When elements are arranged in order of increasing atomic number, there is a periodic pattern in the properties
- 9. symbol in the periodic table is Au
- 10. the first scientist to organize the periodic table
- 11. the rings that surround the nucleus
- 16. last name of who created this crossword
- 17. has an atomic mass of 65.38
- 19. who was this cross word made by
- 21. has a atomic mass of 47.88
- 24. has 29 atomic number
- 26. symbol for lead