The electron shell K is nearest to the nucleus.
The closest shell to the nucleus is called the “1 shell” (also called “K shell”), followed by the “2 shell” (or “L shell”), then the “3 shell” (or “M shell”), and so on farther and farther from the nucleus. What happens to the distance between the energy levels as n increases?
The shell which is closest to the nucleus is the first shell. The shells are designated as: The sequence in which the electrons occupy the shell is given as: 2, 8, 18, 32, 50, 72, 98.
Which electron shell is nearest to the nucleus?
– Science The electron shell _________ is nearest to the nucleus. The electron shell K is nearest to the nucleus. Is there an error in this question or solution?
There’s also a slight problem with talking about “shells nearest the nucleus”. No doubt, when writing this, the questioner had something like this in mind: In this model it’s fairly easy to explain why a higher n results in a higher (less negative) energy.
Why does the electron shell nearest to the nucleus have the lowest energy?
There are several things to discuss here. Firstly, it is lower in energy — but has a higher binding energy. This is because we express the energy of bound electrons with the 0 energy being a “free electron”.
How far away from the nucleus do electrons move?
If electrons are moving around the nucleus, modern theory has it that they can be almost any distance from it at any time (on that scale, that is). So, the highest energy electrons “mix” with the lowest. In general, it appears that the highest energy electrons spend more time farther out that the lower energy (aka core) electrons.
The negatively charged fundamental particles which are known as electrons are considered to occupy diffuse shells in the space that surrounds the positively charged nucleus. The shell which is closest to the nucleus is the first shell. The sequence in which the electrons occupy the shell is given as:.
The per unit volume of space part is very important here; as we consider radii closer to the nucleus, these volumes become very small, so the number of electrons per unit volume increases very rapidly. In this view, it appears as if the electron does fall into the nucleus!
What is the coiling direction of a snail’s shell?
The coiling direction of the shell is basically as specific for a certain snail species , that it may be used for identification purposes. Often whole snail families are definite in this matter, such as the Helicidae, to which belong the largest land snail in Central and Western Europe, Helix pomatia.
Looking into the opening of the shell it can be seen that in one strain the shell always coils to the left (sinistral) whereas in the other strain the shell always coils to the right (dextral). In the cross dextral x sinistral all the F, progeny have dextial coils implying that dextral is dominant over sinistral .
In nature there are numerous examples for the rule that right is rarely the same as left. One example is the tetrahedral structure of the carbon atom . Another is the coiling of a snail’s shell. Basically a shell, as snails have one, is a common character of all higher molluscs.
What is the difference between right and left coiling?
The offsprings whose mothers are either homozygous or heterozygous for right coiling are right coilers even if they are homozygous for sinistrality (left coiling). In the same way offspring of left coiling mother are left coilers even if they carry dominant genes for right coiling.