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प्रश्न
For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
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उत्तर
K – 2, L – 8, M – 18, 28 electrons – Nickel
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संबंधित प्रश्न
Na+ has completely filled K and L shells. Explain.
Which one of the following is a correct electronic configuration of sodium?
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
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?
The atom of aluminium is represented by 27Al13. Write down the number of electrons in the different orbits or shells in one atom of aluminium.
The atom of aluminium is represented by 27Al13. Write down the number of neutrons in the different orbits or shells in one atom of aluminium.
Differentiate between the term Duplet and octet rule.
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
Give a reason for the following:
Helium is chemical extremely unreactive.
Total number of electrons that can be accommodated in an orbit is given by __________.
