Table of Contents
Why do the orbitals in a Bohr model fill 2 8 8?
The 2–8–8 rule is the electron filling rule in the shells of an atom. It is used for predicting the no. Of electron in each shell. The innermost shell will have maximum of 2 electrons, second will have 8 and so on.
What elements has atoms with electrons distributed as 2/8 18 2 in the first four energy levels?
List of elements with electrons per shell
| Z | Element | No. of electrons/shell |
|---|---|---|
| 15 | Phosphorus | 2, 8, 5 |
| 16 | Sulfur | 2, 8, 6 |
| 17 | Chlorine | 2, 8, 7 |
| 18 | Argon | 2, 8, 8 |
What is KLM and N shells in chemistry?
The K shell is the first shell or energy level, L is the second shell, M is third, and so on. The KLMN notations indicate the total number of electrons with each principal quantum number which is n. It contains the 17 electrons which are distributed in its atomic shells.
How do you fill electron shells?
The innermost shell is filled first. This shell can contain a maximum of two electrons. The second shell can hold a maximum of eight electrons. When this is filled, electrons go into the third shell, which also holds a maximum of eight electrons….Electron shells.
| Energy shell | Maximum number of electrons |
|---|---|
| First | 2 |
| Second | 8 |
| Third | 8 |
What is KLM shell?
The K shell is the first shell or energy level, L is the second shell, M is third, and so on. The KLMN notations indicate the total number of electrons with each principal quantum number which is n. Now we want to accommodate these 18 electrons in energy shells.
How many electrons are in the 3rd shell?
eight electrons
The second shell can hold a maximum of eight electrons. When this is filled, electrons go into the third shell, which also holds a maximum of eight electrons….Electron shells.
| Energy shell | Maximum number of electrons |
|---|---|
| First | 2 |
| Second | 8 |
| Third | 8 |
What can hold up to 18 electrons?
Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.
How do you calculate the number of electrons in a shell?
Shells Shell and ‘n’ value Max. Electrons in the Electron Configura K shell, n=1 2*1 2 = 2 L shell, n=2 2*2 2 = 8 M shell, n=3 2*3 2 = 18 N shell, n=4 2*4 2 = 32
What is the maximum number of electrons in the M shell?
An atom’s electron shells are filled according to the following theoretical constraints: In L we have 2 subshell that is s and p, so maximum number of electrons in L shell is 2+ 6= 8 In M we have 3 subshell that is s, p and d so maximum number of electrons in M shell is 2+6+10.
Can I Follow my electron configuration for Shell 3?
I can follow your electron configuration for shell 3. But the reason they only tell us 8 of the electrons occupying the 3rd shell and not 18 is still not clear. (This assumes that they have left out the 10 electrons in the 3d orbital.)
How many subshells of electrons are possible with n=4?
The subshells into which electrons are distributed are based on the azimuthal quantum number (denoted by ‘l’). This quantum number is dependent on the value of the principal quantum number, n. Therefore, when n has a value of 4, four different subshells are possible. When n=4.