Chemistry crossword

2. Metals make up the ______ of the periodic table.
5. Are Shiny, brittle, and semi-conductive.
6. ____-____ are the outermost electrons.
8. Nonmetals become negative ions, which are called_____.
14. Metalloids sit on the diagonal ______ between metals and nonmetals in the periodic table.
16. Are malleable, conductive, ductile, solid, and have luster.
18. Nonmetal accept(____) electrons.
19. ____ are the most reactive nonmetals, posses 7 valence electrons, have a charge of -1, and have high electronegativity.
22. Halogens belong to group ____.
23. Nonmetals tend to gain ______ to form negative ions (anions).
25. Transition metals belong to groups ____-____.
28. Are Dull, poor conductors, brittle, and have low density.
29. ____-____ are extremely soft silvery gray metals that posses 1 valence electron, have a charge of +1, & are the most reactive metals.
30. The modern periodic table is organized in increasing _____-_____.
31. Are Actinides grouped into a row or column?

1. How many elements are classified as Lanthanides? (Hint: they range from atomic number 57 to atomic number 71).
3. ____-____ are Ductile & malleable, have multiple oxidation states(charges), & have different color compounds.
4. ____-____ have full valence electron shells, are colorless, tasteless, odorless, and are essentially nonreactive; inert.
7. Metals become positive ions, which are called _____.
9. Are Alkaline earth metals more or less reactive than Alkali metals?
10. ____-____-____ are relatively soft gray white metals, oxidize in air, posses a 2 valence electrons, & have a charge of +2.
11. Alkali metals react with ____ water to make strong bases.
12. Alkali metals belong Group ____.
13. Noble gases belong to group ____.
15. Alkaline earth metals belong group ____.
17. Metals donate(____) electrons.
20. The modern periodic table is also organized in _____&_____.
21. Who is credited with designing the first periodic table?
24. The ____-____-____ provides a way to visualize an atom's structure & potential to bond.
26. _______ are also known as rare-earth metals, react violently with nonmetals, and have high melting & boiling points.
27. _______ are ALL reactive electropositive metals.