The table below shows the most common prefixes and their relative magnitudes. Note that web browsers do not support use of superscripts and subscripts very well, so the notation 10^ 2 means 10 to the power of 2, or 10 squared.Similarly, the notation 10- 2 should be read as 10 to the power of -2.lways put a space between the number and unit, e.g., 203.65 m, 457 um pH: The proper method for reporting pH is to place the unit before the number (pH 7); never insert the word of between the unit and number and avoid splitting the unit and number within a sentence-they should always go together.
What elements make up the gas compounds found in the atmosphere? The atmosphere is primarily composed of Nitrogen (N2), which accounts for 78%. Oxygen follows, accounting for 20% of its volume, with argon less than 1%. The remainder is compâ¦osed of particulates and trace gases, including water vapor.
Carbon is a Group 14 element and is distributed very widely in nature. It is found in  abundance in the sun, stars, comets, and atmospheres of most planets. Carbon is present as carbon dioxide in the atmosphere and dissolved in all natural waters. It is a component of rocks as carbonates of calcium (limestone), magnesium, and iron. The atmosphere of Mars is very thin but what there is contains about 95 % CO2.