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प्रश्न
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
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उत्तर
The distribution of elements in different orbits is determined by the Bohr-Bury scheme. There are the following rules:
- The formula 2n2 represents the maximum number of electrons in any shell, where n equals the number of orbits.
- The outermost shell can accept up to eight electrons.
- Electrons in an atom do not enter a new shell until all of the inner shells are filled.
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संबंधित प्रश्न
Which of the following is the correct electronic configuration of sodium?
The atom of aluminium is represented by 27Al13. Write down the number of protons in the different orbits or shells in one atom of aluminium.
Differentiate between the term Stable and unstable electronic configuration.
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
Explain the octet rule for the formation of –
Nitrogen molecule from two nitrogen atoms.
Give a reason for the following:
Helium is chemical extremely unreactive.
Name an element which has the same number of electrons in its first and second shell.
The electronic configuration of an atom is 2,8,3. The valency of the atom is ______.
The maximum No. of electrons that can be accommodated in the M shell is ______.
The electronic configuration of ‘Cl’ is ______.
