Periodic table Quiz 1). The elements in yellow are referred to as_

2). The periodic table is arranged by_

3). What are 4 characteristics of metals?

4). Identify the group or period that matches each description.
a. Elements with 6 energy levels.
b. Elements with 2 balance electrons.

5). Energy levels hold a specific number of electrons. There are up to___ electrons in the first level, up to__ in the second level and up to__ in the third level.

6). What do valance electrons determine?

7). Where are the most reactive elements?