No and none.We use no+noun. No=not a or not any:We had to
walk home because there was no bus. I can't talk to you now. I have no time.
There were no stores open.
You can use no + noun at the beginning of
sentence:The plane was late. No reason was given for the delay.
We use
none without a noun:"How much money do you have?" "None". All the tickets have
been sold. There are none left.
Or we use none of:This money is all
yours. None of it is mine.
After none of + plural (none of the
students,etc), the verb can be plural or singular:None of the stores were (or
was) open.