PPM stands for parts per million when reporting very small concentrations
Radium exist in very small concentrations in uranium ores.
Radium exist in very small concentrations in some meteorites.
"ng" typically stands for "nanograms," which is a unit of measurement used to quantify very small amounts of a substance. It is commonly used in fields such as biology, medicine, and pharmacology to measure concentrations of substances in samples.
Very Small Aperture Terminal
Radium exist only in very small concentrations in uranium minerals; radium hasn't its own minerals.
Radium exist only in very small concentrations in uranium and thorium ores; radium hasn't its own minerals.
a weak gel
need not be..equilibrium constant is just a ratio of relative concentrations of products (multiplication of concentration in case of more than one products) to the concentration of reactants (multiplication of concentrations of reactants in case of more than one reactants)..the equilibrium concentration can be a very small number or can be a very number as well depending upon the relative concentrations of reactants and products..Unity equilibrium constants is just a special case which shows that the concentrations of products and reactants are equal..
At very low soap concentrations, the cleaning effect may be weaker compared to higher concentrations. This is because lower soap concentrations may not produce enough surfactants to effectively break down oils and dirt. It's generally recommended to use the recommended amount of soap for optimal cleaning results.
Chrome in its elemental form is not poisonous, but certain compounds containing chromium can be toxic in very small amounts. For example, hexavalent chromium (Cr(VI)) compounds are considered carcinogenic and can cause various health issues even in low concentrations.
A treasurer is in charge of managing and reporting corporate assets . A cashier handles very small cash transactions (like at a cash register in
Pollution amounts occurring in small concentrations are usually measured in parts per million (ppm) or parts per billion (ppb) for accuracy.These measurements provide insight into the level of pollutants present in the environment, even at very low levels.