<span> We look for
evidence. There are numerous natural phenomenon that we can't observe
happening in real-time because they happen over large time scales, or
large spatial scales. But we can observe the effects of these
phenomenon and make predictions about what other effects we should see. </span>
The mass number of an atom : 26
<h3>Further explanation</h3>
Given
12 protons, 14 neutrons, and 12 electrons
Required
The mass number
Solution
Inside the atom there are 3 sub-particles, namely protons, neutrons and electrons. Protons and electrons are present in the atomic nucleus while electrons move around the atomic nucleus through energy levels in the atomic shell
Atomic number = number of protons = number of electrons
Mass number = number of protons + number of neutrons
Input the value :
Mass number = 12 + 14
Mass number = 26
Answer:
HYDROGEN BONDING (determines rate of migration)
Explanation:
There are two forces acting on the sample:
<u>Gravity/ Capillary action force:</u> This can include gravity, pumping of fluid through the tube, or the capillary action of the liquid when moving up the sheet of paper.
<u>Interactive force with the gel used:</u> The another force is dependent on the fundamental properties of individual components with fluid. These can be polarity, charge, adhesive nature, etc.
The most type of the chromatography is exploiting polarity of the molecules. So in TLC, we have a sheet coated with silica gel usually (polar), and a liquid that contains a mixture of different compounds which is being pushed up paper through the capillary action.
Some liquid's polarity will be greater than the others, and that's why the liquids move at various speeds based on favorable/ unfavorable interactions between different compounds in the mixture.
In this way, one can separate a mixture into individual constituting parts.
<u>Thus, the relative amount of hydrogen bonding to the stationary phase will determine the Relative Rate of Migration of the various components in the sample.</u>
Non-Metals:
Hydrogen
Oxygen
Carbon
Nitrogen
Fluorine
Phosphorus
Sulfur
Chlorine
Selenium
Bromine
Iodine
Orange i believe so or if not blue
