This website seems to be unable to display the symbol you mean.
If you know how to produce it using alt characters, then ask the question with ALT+XXXX.
You can look up the alt characters by running Character Map (Start-> Run then type "charmap". Press ok. Look for your symbol in the list, select it, and the alt character is shown in the bottom panel of the window).
a symbol
The symbol ' is called an apostrophe.
the symbol is called the sky The crescent moon.
There is no symbol.
The "and" symbol is called an ampersand.
That symbol is called the radical.
The " symbol is called a quotation mark.
It is called an Ampersand.
The "&" symbol is called an ampersand.
If you mean the symbol &, it is called an ampersand.
The '&' symbol is called ampersand.
it is called proces symbol