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प्रश्न
What are ‘energy levels’?
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उत्तर
‘Electrons revolved the nucleus in definite orbits called shells or energy levels since while revolving in a shell an electron possesses a certain amount of energy.”
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संबंधित प्रश्न
What is the maximum number of electrons which can be accommodated in the K shell of an atom?
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon
(ii) Chlorine
Draw a neat labelled diagram.
Diagramatic sketch of electronic configurations of magnesium (Atomic number 12)
What is meant by the term orbits
Explain the octet rule for the formation of –
Nitrogen molecule from two nitrogen atoms.
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
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 ______.
Explain the electronic configuration of atoms with an illustration.
