1. Magnesium is Mg. Mn is manganese.
QUESTION:
Which of the these elements is paired with its correct symbol? A. magnesium, Mn B. potassium, Po C. fluorine, F D. argon, AR
Argon is Ar.
SCRIPT:
Which of the these elements is paired with its correct symbol? Magnesium, … potassium…, fluorine…, or cobalt
PAUSE We can immediately eliminate choice D. In the symbol for any element, the first letter… and only the first letter… should be capitalized.
CROSS OUT D
CLICK The symbol for argon is upper case A, lower case R. Even though R is written small here, it’s still capitalized.
CLICK The symbol for magnesium is capital M, lower case g.
Capital M, lower case N is the symbol for manganese.
So choice A is wrong.
CROSS OUT A
CLICK The symbol for potassium is capital K. K is the first letter in the Latin name for potassium, which is Kalium.
Capital P, lower case O is the symbol for
So choice B is wrong.
CROSS OUT B.
Choice C is correct. The symbol for fluorine is capital F.
Magnesium is Mg. Mn is manganese.
Potassium is K. Latin name of potassium is Kalium.
Po is polonium.

2. 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