The Periodic Table

3. There are 18 of these on the periodic table.
4. This element has 8 protons and is the air that we breathe.
5. An element with the atomic # of 6.
6. An element that has 1 valence electron and is also known as salt.
11. The elements that take up the middle part of the periodic table are called _______ metals.
14. A group of elements that are great conductors, shiny, and solids.
15. An element with the atomic mass of 14.007.
17. The atomic # of an element represents the amount of ____ and electrons.
18. This element is in period 2 and has 1 valence electron.
19. The element that is represented by the symbol Si.

1. This element is a metalloid with 3 valence electrons.
2. Metals, nonmetals, and ____ are the 3 main categories of elements.
7. There are 7 of these on the periodic table.
8. An element that has 8 valence electrons and is found in period 5.
9. The metalloids on the periodic table are arranged in the formation of a _____.
10. The first element on the period table.
12. This element is a noble gas in the same period as gold.
13. _____ dot structures are diagrams that represent elements using electron count.
16. The elements in group 18 are a part of the ______ gas family.