Energy levels of the electron in one electron system like hydrogen, deuterium etc. is dependent on the reduced mass of the system. Reduced mass of two particle system is given by the following equation
Where M is mass of the nucleus and me is mass of the electron. Because…
However, the boundary of 2s has a spherical surface around the nucleus and another spherical shell around the nucleus. Thus there is a node between the two spherical surfaces describing 2s surface while just one spherical surface describes 1s orbital.
Q3. The probability distribution function is obtained by multiplying the square of the wave function with 4r2. Even though the radial part of the wave function is maximum at r = 0; the value of the probability distribution function will be zero only as r = 0. Thus the maximum probability of finding an electron can be at some other value of r; even though the wave function has its maximum value at r = 0. Thus it can be seen that there is no contradiction in probability of finding an electron being maximum at r = 0.529 A and value of the corresponding wave function being maximum at r = 0. Hence the two statements are compatible.
Q4. This is because alkali metals are multi electron system unlike hydrogen, which is one electron system. Therefore, in case of hydrogen only electron – nucleus interaction is there and the atomic spectrum of hydrogen is due to electronic transition of just one electron across different excitation states. In case of alkali metals, there being many electrons, there exists interaction among electrons as well besides the electron – nucleus interaction. Further there are many more excitation states and electronic transitions in case of alkali metals (because of many electrons being there) than in case of hydrogen atom. Therefore, the atomic spectrum of an alkali metal is much more complex than that of hydrogen.
Q7. First ionization energy of an atom is the value of energy required to pull out the outermost electron from the atom. Its value increases as one traverse from left to right in a period of the periodic table. This is because as one moves from left to right in a period the number of protons I the ...
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(Anions and Cations in Biological Systems Essay Example | Topics and Well Written Essays - 5000 Words)
“Anions and Cations in Biological Systems Essay Example | Topics and Well Written Essays - 5000 Words”, n.d. https://studentshare.net/miscellaneous/398947-anions-and-cations-in-biological-systems.
In order to better understand magnesium and its interactions, it is important to examine fundamental of the element that have been previously pioneered. This knowledge sets the stage for application of contemporary techniques to produce new and exciting results in magnesium analysis.
it in its place Ciliary muscles Smooth muscle present in the ciliary body. helps in changing the shape of shape of lens while accommodation Aqueous Humour A fibrous, protective and opaque outer structure. Provides surface for eye muscles to get attached Vitreous Humour A hole within the Iris Allows the passage of light rays through the eye in a controlled amount Optic Nerve bundle of sensory fibers joined together Conveys the visual stimuli to the CNS Retina jelly like transparent structure located behind the lens Maintains the shape of eyeball’s posterior chamber Choroid Vascular layer of eye Supplies nutrition to various eye structures 1.
Each nitrogenous base is connected to a molecule of deoxyribose sugar to form a nucleoside. Each nucleoside is joined to a phosphate group to form a nucleotide. Repeating units of nucleotides form DNA. The structure of DNA is double helix. The edges on the outer side are formed by alternating phosphate groups and deoxyribose sugar molecules.
These are all sodium/potassium-coupled chloride cotransporters described succinctly below. They can be functionally classified broadly into four groups according to the cation coupling to the chloride ion, the stoichiometry of the transport process and the relative sensitivities to inhibitors.
First, that the two contribute to equal parenting responsibilities, and second, that the biological association has negligible importance in defining the relations.
These realities turn into even more vital if a couple ends their link to each other. According to the nonprofit support organization the "divorce" pace of same-sex parents is equivalent to that of heterosexual parents.
The cerebrum controlling the human senses of touch etc, the cerebellum which controls coordination and balance and the brain stem that provides the linkage between brain and spinal cord as well as controls breathing, heartbeat and digestion.
Spinal Cord is
The issues that need to be clarified to the members of the public include those related to climate change; those related to the objectives of the space program; those related to the conservation of endangered animal and plant species and those related to the use of