What is the Bury-Burri scheme of electronic configuration? Write down the rules that are observed according to the scheme for writing the number of electrons in different energy levels or shells.
What is the Bury-Burri scheme of electronic configuration? Write down the rules that are observed according to the scheme for writing the number of electrons in different energy levels or shells.
- Bohr and Bury (1921) simultaneously, but independently put forward two identical schemes for the distribution of electrons in various orbits.
- This scheme is, therefore, known as the Bohr-Bury scheme.
- The rule of the Bohr-Bury Scheme is as follows:
Explanation of Bohr-Bury scheme:
- The subatomic particles' electrons in the atom are arranged in distinct shells surrounding the nucleus.
The electrons occupy the shell nearest to the nucleus first since it has the lowest energy.
(i) The K-shell is the first and deepest shell, and it can hold up to two electrons.
(ii) The L-shell is the second shell, and it can hold up to eight electrons.
(iii) A total of 18 electrons can indeed be accommodated in the 3rd shell, known as the M-shell.
In general, the total or the most amount of electrons that a shell can accommodate is equal to , where n is given the shell number.
- The outermost orbit cannot hold more than eight electrons, even though it may have the capacity to hold more electrons.
K-shell cannot accommodate more than 2 electrons. For example, the atomic number of calcium is 20.
The electronic distribution is as; K= 2, L=8, and the third shell M-shell cannot hold more than 8 electrons, and the fourth one N-shell cannot hold more than 2 electrons, thus for N shell N=2.
- The shells are filled in a stepwise manner, i,e, electrons cannot occupy a new shell unless the inner shells are filled completely according to the rule .
- Bohr and Bury (1921) simultaneously, but independently put forward two identical schemes for the distribution of electrons in various orbits.
- This scheme is, therefore, known as the Bohr-Bury scheme.
- The rule of the Bohr-Bury Scheme is as follows:
Explanation of Bohr-Bury scheme:
- The subatomic particles' electrons in the atom are arranged in distinct shells surrounding the nucleus.
The electrons occupy the shell nearest to the nucleus first since it has the lowest energy.
(i) The K-shell is the first and deepest shell, and it can hold up to two electrons.
(ii) The L-shell is the second shell, and it can hold up to eight electrons.
(iii) A total of 18 electrons can indeed be accommodated in the 3rd shell, known as the M-shell.
In general, the total or the most amount of electrons that a shell can accommodate is equal to , where n is given the shell number.
- The outermost orbit cannot hold more than eight electrons, even though it may have the capacity to hold more electrons.
K-shell cannot accommodate more than 2 electrons. For example, the atomic number of calcium is 20.
The electronic distribution is as; K= 2, L=8, and the third shell M-shell cannot hold more than 8 electrons, and the fourth one N-shell cannot hold more than 2 electrons, thus for N shell N=2.
- The shells are filled in a stepwise manner, i,e, electrons cannot occupy a new shell unless the inner shells are filled completely according to the rule .
