One space is sufficient.
It's usually a matter of style though. If you decide to use two spaces then you should be consistent with this throughout the rest of your work.
In standard prose typing, you space twice after a period.
Once. The only time to use more than one space is after a period.
You put the right quote immediately after the period and then 1 space.
Once. That is enough.
Two times
Are we talking of Menstrual Periods, or Grammatical Periods. ????
No, just use one space.
If there is more than one initial, there is no space after the period which separates them. After the period after the last initial there is one space.e.g. T.S. EliotAfter a period at the end of a sentence you do two spaces, but often only one is done.
It's a text string formed by typing the digit ' 1 ' twenty-three times, with a space between the tenth and eleventh ones.
8250 You move the period 1 space to the right for every 0
Normally two spaces indicates the end of a sentence.
It really depends on what format you are typing in. Some say hit the space twice and others say once. For the most part you hit the space bar once because,this would look really weird This one, looks better (referring to the commas)