The 2 indicates that there are 2 oxygen atoms.
If the number is after a letter, then it has to be subscript. If it is before a letter then it is normal. The only time you would use superscript would to indicate ionic charge or the mass number.
Examples:
CO2
2H2O <---- this is saying two molecules of water, each of which has two hydrogen and one oxygen
CH4 <---- this is saying one carbon bonded to four hydrogens
2CH4 <---- this is saying two molecules of the compound (methane), each of which has one carbon atom bonded with four hydrogen atoms. The overall total number would be two carbon and eight hydrogen
Mg+2 <---- this is a magnesium ion with a charge of +2
232U <---- this is an isotope of uranium with a mass number of 232
The 2 indicates that there are 2 oxygen atoms.
Subscript. Superscript is small.
The superscript is the mass number (179); the subscript is the atomic number (72).
The alt keys for superscript ² & ³, are alt0178 = ² and alt 0179=³
It is a superscript: Br+.
Any one with a central atom bonded to four others, such as phosphate or ammonium. PO(subscript 4) (superscript 3-) NH(subscript 4) (superscript +)
When you are doing work with elements in science
It would be a superscript.
Superscript.
superscript 63 and subscript 152 Eu (the super and subscript go before the symbol with superscript on top of the subscript)
ctrl = for subscript ctrl shift = for superscript
15
The superscript is the mass number (179); the subscript is the atomic number (72).
There are no keyboard shorcuts to do this. Instead you must select the cell (or text in a cell) right click, selecte formatting, and then click the superscript/subscript boxes. Welcome to the wonderful world of MS products.
subscript lower a round the baseline e.g H2O superscript rises a word above the baseline e.g4th
Michael W. Swagel has written: 'The determination of the g[subscript J]([superscript 3]P[subscript 1]) value and g[subscript J]([superscript 1]P[subscript 1]) value of barium and the ratio A([superscript 1]P[subscript 1])/[[Greek letter mu subscript O]g[subscript J]([superscript 1]P[subscript 1]) ] of mercury-199' -- subject(s): Barium, Mercury, Spectra, Spectrum analysis
The alt keys for superscript ² & ³, are alt0178 = ² and alt 0179=³
It is a superscript: Br+.
wouldnt it just be Si The superscript is the mass number (28) and the subscript is the atomic number (14).