Periodic Table

2. shiny, high melting point
3. ___ noble gas that has an atomic number of 2
4. ____ metals are soft, silvery grey and are the most reactive metal
9. ___ and alkali metal that has an atomic number of 3
11. Valence electrons are the electrons in the ___ energy level
13. ions are formed from a transfer of ___
14. ____ contain properties of both metals and nonmetals
18. ___ gases are colorless, odorless, tasteless and have characteristic colors when excited
19. All of the elements in group 1,3 and 13-18 have a ___ ion charge pattern
20. John Newlands was the first person who developed a periodic table by increasing _______
21. The number of the charge depends on how many ___ electrons are lost or received.
24. nonmetals are ____ and break easily
26. valence electrons are the ___ electrons
27. nonmetals ___(gain) electrons when becoming an ion
28. poor conductors of heat and electricity
29. In 1864, ____ wrote a textbook that included an abbreviated version of a periodic table that contained 28 elements.
30. In 1869, _______'s table was published, containing all 60 of the known elements and predicting the existence of 3 missing elements

1. ___ Alkaline earth metal that has an atomic number of 4
3. ____ are the most reactive nonmetals
5. also known as the "rare earth metals"
6. ___ halogen with an atomic number of 35
7. Dmitri Mendeleev arranged the periodic by increasing ___
8. a valence electrons are the electrons in the ___ energy level
10. ____ metals are ductile and malleable and come from ores in the earth's crust.
12. Metals are good _____ of heat and electricity
15. all are radioactive, grouped into a row instead of a column
16. Lewis Dot ___ provide a way to visualize an atom's structure and potential to bond
17. Ions are atoms with a ___
22. ____ earth metals are relatively soft and oxidize in air.
23. ___ a lanthanide that has an atomic number of 58
25. Metals ___(lose) electrons when becoming an ion