Many scientific publications require the use of symbols. To insert symbols into a Word document, use the Insert Symbol menu option. Either find the symbol in the ones displayed or type in the unicode number in the Character Code field. 

You can also use keyboard shortcuts to enter a symbol in a Word document (see the table below):

• Type a unicode number (see below).
• Select the unicode text.
• Press Alt+x.

Word will replace the unicode with the correct symbol.