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प्रश्न
The following element is given \[\ce{_3U}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
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उत्तर
\[\ce{_3U}\]: Number of electrons = 3
Electronic arrangement = [2, 1]
∴ U is metal
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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 K shell of an atom?
What is the maximum number of electrons which can be accommodated in the L shell of an atom?
What is the maximum number of electrons an M shell of the atom can accommodate?
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?
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?
Mention the basic tendency of an atom which makes it combine with other atoms
Explain the arrangement and distribution of electrons in the various shells with reference to an atom in general and to an atom of potassium ‘3919K’ with special reference to the 2n2 rule.
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
How will you define the term ‘electronic configuration’?
