The document contains questions about the periodic table and elements. It asks about the classification of sodium, the names of the vertical columns, the atomic number and protons of nitrogen, the atomic weight of oxygen, which noble gas has a larger radius between neon and krypton, the symbol for cobalt, and hypothetically what element iTeach would be if it was on the periodic table.

1. Periodic Table
Dimitri Mendeleev (1834-1907)

2. Group
Period
The Periodic Table

3. Is sodium (Na) a metal, nonmetal or metalloid?

4. Are vertical columns called groups or periods?

5. What is the atomic number of Nitrogen (N)?

6. How many protons does Nitrogen (N) have?

7. What’s the atomic weight of Oxygen?

8. What element has a larger radius, Neon (Ne) or Krypton
(Kr)?

9. Cobalt is a metal. What is the symbolof cobalt
a) C
b) Co
c) CO

10. If iTeach was an element what would it be and why?