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.
Oxygen: the essentials. Oxygen is a Group 16 element. While about one fifth of the atmosphere is oxygen gas, the atmosphere of Mars contains only about 0.15% oxygen.Oxygen is the third most abundant element found in the sun, and it plays a part in the carbon-nitrogen cycle, one process responsible for stellar energy production.n the other hand, ozone is an important component of the atmosphere (the ozone layer) and helps to shield us from harmful ultraviolet rays from the sun. Oxygen gas (dioxygen, O 2) makes up 21% of the atmosphere by volume. It is the most abundant element in the earth's crust (followed by silicon).