1. QUESTION:
Which of the following elements is the best electrical conductor? A. carbon, B. germanium, C. manganese, D. iodine
SCRIPT:
A. carbon, B. germanium, C. manganese, D. iodine
PAUSE
Good electrical conductivity is a characteristic of metals. Therefore, we can answer this question by identifying the metal among the choices given.
To determine if an element is metallic, it is best to refer to the periodic table.
CONTINUED ON NEXT SLIDE

2. The metallic elements are shown here highlighted in red.
The nonmetallic elements are highlighted in blue.
And the metalloids are not highlighted.
Here’s carbon…
CLICK
its symbol is C
Here’s germanium…
CLICK its symbol is Ge
Here’s manganese…
its symbol is Mn
And here’s iodine
CLICK its symbol is I
Therefore, the correct answer is manganese. Of the choices give, it’s the only metallic element.
CLICK HIGHLIGHT answer
PAUSE
END RECORDING

3. QUESTION:
Which of the following elements is the best electrical conductor? A. carbon, B. germanium, C. manganese, D. iodine

4. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08