## Should there be a gap between number and unit?

There should be no space between the number and its corresponding symbol. However, place a space between the number and an abbreviated unit of measurement. 5 p. Write ‘per cent’ as two separate words, but ‘percentage’ as one.

## Do you put a space before CM?

Always use the space. They are two different things, the quantity (100) and the unit (km).

Should there be a space between number and unit UK?

There is a space between a number and a unit of measurement e.g. 20 mg – except for temperatures e.g. 20°C and percentages e.g. 20% (or in text use 20 per cent). When giving a range do not repeat the unit, e.g. 5 to 8 mg and not 5 mg to 8 mg. Use the word ‘to’ in text, not a dash.

### Do you put a space before KM?

Leave a space between kilometre (or its symbol km ) and the number that immediately precedes it.

### What are the rules for writing SI units?

Rules and conventions for writing SI units and their symbols

• The units named after scientists are not written with a capital initial letter.
• The symbols of the units named after scientist should be written by a capital letter.
• Small letters are used as symbols for units not derived from a proper name.

Is space required after slash?

There is no need to include a space on either side of a forward slash. The exceptions are for: official dual place names. lines of poetry in running text – use forward slashes with spaces around them to show the line breaks.

#### Should there be a space after ellipses?

There should be no space between the ellipsis and the word.

#### Is there a space before grams?

When a specific figure is given, leave a space between the word gram (or the symbol g ) and the number that immediately precedes it. In scientific and technical writing, either the number and unit name are both written in full ( e.g. twelve grams), or a numeral is used with the symbol ( e.g. 12 g ).

What are the rules for writing symbols?

If an element has a single English letter as a symbol, it should be written in the upper case. 2. If an element has a two-letter symbol, the first letter should be written in the upper case and the second letter in the lower case.

## Do you put space before and after slash?

A. If the slash divides two words, there is no space. If it divides two phrases or sentences (or a single word from a phrase), it requires a space before and after.