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Question
Identify element X from the following options if it has 3 electrons in its M-shell.
Identify element X from the following options if it has 3 electrons in its M-shell.
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Solution
The correct option is C Aluminium
The element X has 3 electrons in its M-shell, which means its K and L shells are filled with 2 and 8 electrons respectively.
(K-shell: 2 electrons, L-shell: 8 electrons, M-shell: 3 electrons)
So, the element X has atomic number is 13. Aluminium is the element with atomic number 13 and have electronic configuration (2,8,3). Hence, element X is Aluminium.
The element X has 3 electrons in its M-shell, which means its K and L shells are filled with 2 and 8 electrons respectively.
(K-shell: 2 electrons, L-shell: 8 electrons, M-shell: 3 electrons)
So, the element X has atomic number is 13. Aluminium is the element with atomic number 13 and have electronic configuration (2,8,3). Hence, element X is Aluminium.
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