Periodic Table

2. ___ Alkaline earth metal that has an atomic number of 4
5. In 1864, ____ wrote a textbook that included an abbreviated version of a periodic table that contained 28 elements.
6. nonmetals are ____ and break easily
8. ___ a lanthanide that has an atomic number of 58
9. valence electrons are the ___ electrons
11. Metals are good _____ of heat and electricity
13. also known as the "rare earth metals"
17. ____ contain properties of both metals and nonmetals
18. shiny, high melting point
20. Valence electrons are the electrons in the ___ energy level
21. ____ metals are ductile and malleable and come from ores in the earth's crust.
23. a valence electrons are the electrons in the ___ energy level
25. poor conductors of heat and electricity
28. ___ halogen with an atomic number of 35

1. John Newlands was the first person who developed a periodic table by increasing _______
3. ions are formed from a transfer of ___
4. ___ noble gas that has an atomic number of 2
7. Lewis Dot ___ provide a way to visualize an atom's structure and potential to bond
10. ___ and alkali metal that has an atomic number of 3
11. All of the elements in group 1,3 and 13-18 have a ___ ion charge pattern
12. Metals ___(lose) electrons when becoming an ion
14. nonmetals ___(gain) electrons when becoming an ion
15. ____ are the most reactive nonmetals
16. ____ metals are soft, silvery grey and are the most reactive metal
19. Ions are atoms with a ___
22. all are radioactive, grouped into a row instead of a column
24. In 1869, _______'s table was published, containing all 60 of the known elements and predicting the existence of 3 missing elements
26. ___ gases are colorless, odorless, tasteless and have characteristic colors when excited
27. ____ earth metals are relatively soft and oxidize in air.