Based on the definition which states it is an indicator of oxidation of an atom in a chemical compound. I believe the most viable answer is the charge of an atom's ion.
Answer:
Hanging indent
Explanation:
When writing citations, the list of references are formatted using hanging indents. The interpretation of this is that, the first line of the reference will start at the 0" level of the left margin but subsequent lines will start at the 0.5" margin.
To create an hanging indent, you start by highlighting the text on the second paragraph or you set your cursor to the start of the cited text.
Then goto paragraph (under the home tab)
Select indent and spacing
Go to special
Select hanging
Select 0.5"
Click 0k
The Intel 4004 is generally regarded as the first commercially available microprocessor