Answer:
1 - e, 2 - k, 3 - a, 4 - i, 5 - b,
Explanation:
The ratio of the amount of analyte in the stationary phase to the amount in the mobile phase. --- Retention factor.
Time it takes after sample injection into the column for the analyte peak to appear as it exits the column. -- Retention time
The process of extracting a component that is adsorbed to a given material by use of an appropriate solvent system. -- Elution
Measure of chromatographic column efficiency. The greater its value, the more efficient the column. -- Theoretical plate number
Gas, liquid, or supercritical fluid used to transport the sample in chromatographic separations. -- Mobile phase
Immiscible and immobile, it is packed within a column or coated on a solid surface. -- Stationary phase
Answer:
Hydrogen.
Explanation:
We see in the nucleus that we have 1 proton and 1 neutron.
The number of protons in the nucleus determines which element it is.
Element with 1 proton is the 1st element on the Periodic Table, Hydrogen.
The energy of a hydrogen atom in energy level n = 2 is 3.4 eV.
The ionization of energy of the hydrogen atom is 13.6 eV.
This is the minimum energy required to raise the electron from its ground state in the hydrogen atom.
n represents the Energy level.
When an electron changes from one energy level to another, the energy of the atom must change as well. It requires energy to promote an electron from a lower energy level to a higher one. This energy can be supplied by a photon whose energy E is given in terms of its frequency E = hf or wavelength E = hc/λ.
The formula for the energy of an atom is:
E = 13.6 * 
/ 
.... this represents the allowed energy level in the hydrogen atom
= 13.6 * 1 / 
since Z = 1 for hydrogen where Z is mass of atom
= 13.6 / 4
= 3.4 eV
The energy of a hydrogen atom in energy level n = 2 is 3.4 eV.
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# SPJ4
Answer:
by using this formula 2×(n)^२
