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प्रश्न
Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?
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उत्तर
Atomic number is 18
Electron configuration or the distribution of electrons in this atom is :
(2, 8, 8), i.e.,
K = 2; L = 8; M = 8.
The special thing about the outermost shell of this atom is that it is completely filled with electrons. The element will be inert in nature.
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संबंधित प्रश्न
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
What is the maximum number of electrons which can be accommodated in the L shell of an atom?
The atom of an element X has 7 electrons in its M shell.
(a) Write the electronic configuration of element X.
(b) What is the atomic number of element X?
(c) Is it a metal or a non-metal?
(d) What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
(e) What could element X be?
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Write the formula of the compound formed.
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