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प्रश्न
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
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उत्तर
Shells are called 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 :
(a) innermost shell of an atom?
(b) outermost shell of an atom?
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).
An element has atomic number 13 and an atomic mass of 27.
(a) How many electrons are there in each atom of the element ?
(b) How are these electrons distributed in the various energy levels ?
Draw a neat labelled diagram.
Diagramatic sketch of electronic configuration of Argon (Atomic number 18)
Mention the basic tendency of an atom which makes it combine with other atoms
Explain the octet rule for the formation of –
Nitrogen molecule from two nitrogen atoms.
Name an element which has the same number of electrons in its first and second shell.
For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
The outermost shell of an atom cannot accommodate electrons more than ______.
The electronic configuration of ‘Cl’ is ______.
