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प्रश्न
Name an element which has the same number of electrons in its first and second shell.
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उत्तर
Beryllium
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संबंधित प्रश्न
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
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 neutrons in the different orbits or shells in one atom of aluminium.
What are ‘energy levels’?
Differentiate between the term Stable and unstable electronic configuration.
The following element is given \[\ce{_14X}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
State true or false. If false, correct the statement.
The maximum number of electron in L Shell is 10.
The electronic configuration of silicon is ——— and that of sulphur is ———.
How will you define the term ‘electronic configuration’?
